{"id":17444,"date":"2022-01-17T18:37:52","date_gmt":"2022-01-17T13:07:52","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=17444"},"modified":"2024-10-08T12:07:25","modified_gmt":"2024-10-08T06:37:25","slug":"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-materials\/jee-main\/previous-year-papers-questions-with-solutions\/chemistry\/alcohols-ethers-carbonyls-and-carboxylic-acids\/","title":{"rendered":"JEE Main Previous Year Papers Questions With Solutions Chemistry  Alcohols,Ethers,Carobonyls and Carboxylic Acids"},"content":{"rendered":"<h2><span style=\"color: #00ccff;\"><strong> <\/strong><\/span><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002505895_c255dfda5f_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-1\" width=\"398\" height=\"132\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002503005_713cf88c36_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-20\" width=\"374\" height=\"65\" \/><\/h2>\n<p><img loading=\"lazy\" class=\"\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369802714_227a012319_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-2\" width=\"334\" height=\"345\" \/><br \/>\n<strong>Ans.<\/strong>(2) Aldehydic group gets oxidised to carboxylic group. Doyble bond breaks and carbon gets oxidised to carboxylic group.<\/p>\n<p><strong>3.An ether is more volatile than an alcohol having the same molecular formula. This is due to        (2003)<br \/>\n1)alcohols having resonance structures<br \/>\n2)inter-molecular hydrogen bonding in ethers<br \/>\n3)inter-molecular hydrogen bonding in alcohols<br \/>\n4) dipolar character of ethers<\/strong><br \/>\n<strong>Ans.<\/strong>(3) Alcohols are associate liquids.<\/p>\n<p><strong>4.When CH<sub>2<\/sub> = CH \u2013 COOH is reduced with  LiAlH<sub>4<\/sub>, the compound obtained will be (2003)<br \/>\n1)CH<sub>2<\/sub> = CH-CH<sub>2<\/sub>OH \u2018<br \/>\n2)CH<sub>3<\/sub> \u2013 CH<sub>2<\/sub> \u2013 CHjOH<br \/>\n3)CH<sub>3<\/sub> \u2013 CHj \u2013 CHO<br \/>\n4)CH<sub>3<\/sub> \u2013 CH<sub>2<\/sub> \u2013 COOH<\/strong><br \/>\n<strong>Ans.<\/strong>(1) LiA\/H<sub>4<\/sub> can reduce COOH group and not the double bond.<br \/>\nCH<sub>2<\/sub> = CH \u2013 COOH is reduced to give CH<sub>2<\/sub> = CH \u2013 CH2OH<\/p>\n<p><strong>5.During dehydration of alcohols to alkenes by heating with cone. H<sub>2<\/sub>S0<sub>4<\/sub> the initiation step is (2003)<br \/>\n1)formation of carbocation<br \/>\n2)elimination of water<br \/>\n3)formation of an ester<br \/>\n4)protonation of alcohol molecule<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701949050_90b1f45a20_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-21\" width=\"366\" height=\"116\" \/><\/p>\n<div class=\"card\" style=\"text-align: center;\">\n<p><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/test-series\/jee-12-aits?utm_source=surge&amp;utm_medium=Org&amp;utm_campaign=AITS\"><br \/>\n<img loading=\"lazy\" class=\" lazyloaded\" style=\"width: 100%; border-radius: 10px;\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2024\/10\/class-12-jee-test-series.jpg.webp\" alt=\"class 12 jee test series\" width=\"1201\" height=\"636\" data-src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2024\/10\/class-12-jee-test-series.jpg.webp\" \/><\/a><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/test-series\/jee-12-aits?utm_source=surge&amp;utm_medium=Org&amp;utm_campaign=AITS\"><button><strong>All India Test Series for Class 12 JEE Main &amp; Advanced 2025<\/strong><\/button><\/a><\/p>\n<div style=\"text-align: center;\">Boost Your Preparation With Our All India Test Series for Class 12 JEE Main &amp; Advanced 2025<\/div>\n<\/div>\n<p><strong>6.Consider the acidity of the carboxylic acids: Most acidic is    (2004)<br \/>\n1)PhCOOH<br \/>\n2)o \u2013 N0<sub>2<\/sub>C<sub>6<\/sub>H<sub>4<\/sub>C00H<br \/>\n3)p \u2013 N0<sub>2<\/sub>C<sub>6<\/sub>H<sub>4<\/sub>C00H<br \/>\n4)m \u2013 N0<sub>2<\/sub>C<sub>6<\/sub>H<sub>4<\/sub>C00H<\/strong><br \/>\n<strong>Ans.<\/strong>(2) Orthonitrobenzoic acid.<\/p>\n<p><strong>7.On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is   (2004)<br \/>\n1)CH<sub>3<\/sub>COOC<sub>2<\/sub>H<sub>5<\/sub> + NaCl<br \/>\n2)CH<sub>3<\/sub>C1 + C<sub>2<\/sub>H<sub>5<\/sub>COONa<br \/>\n3)CH3COCl + C<sub>2<\/sub>H<sub>5<\/sub>OH + NaOH<br \/>\n4)CH<sub>3<\/sub>COONa + C<sub>2<\/sub>H<sub>5<\/sub>OH<\/strong><br \/>\n<strong>Ans.<\/strong>(1) No chemical reaction occurs.<\/p>\n<p><strong>8.Acetyl bromide reacts with excess of CH<sub>3<\/sub>MgI followed by treatment with a saturated solution of NH<sub>4<\/sub>C1 given            (2004)<br \/>\n1)acetone                 2)   acetyl iodide<br \/>\n3)2-methyl-2-propanol      4)acetamide<\/strong><br \/>\n<strong>Ans.<\/strong>(3) Gives tertiary alcohol.<\/p>\n<p style=\"text-align: center;\"><button style=\"width: 50%;\"><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/one-stop-solutions-for-jee-main-prep?utm_source=surge&amp;utm_medium=interlinking\"><strong>Enroll Now to One Stop Solutions for IIT JEE Prep<\/strong><\/a><\/button><\/p>\n<p><strong>9.Which of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid ? (2004)<br \/>\n1)Phenol                              2)   Benzoic acid<br \/>\n3) Butanal                          4) Benzaldehyde<\/strong><br \/>\n<strong>Ans.<\/strong>(4)Benzaldehyde does not contain a-hydrogen. Hence goes for cannizzaro\u2019s reaction forming alcohol and acid.<\/p>\n<p><strong>10.Among the following compound which can be dehydrated very easily is         (2004)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369802464_d6374010f7_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-3\" width=\"415\" height=\"143\" \/><br \/>\n<strong>Ans.<\/strong>(3) Tertiary alcohols will undergo more easily dehydration than secondary and primary.<\/p>\n<p><strong>11.The best reagent to convert pent-3- en-2-ol into pent-3-en-2-one is    (2005)<br \/>\n1) Acidic permanganate<br \/>\n2)Acidic dichromate<br \/>\n3)Chromic anhydride in glacial acetic acid<br \/>\n4)Pyridinium <\/strong><b>chlorochromate<\/b><br \/>\n<strong>Ans.<\/strong>(3) Conversion of 2\u00b0 alcohol to ketone with mild oxidant.<\/p>\n<p><strong>12.Among the following acids which has the lowest pK<sub>a<\/sub> value?<br \/>\n1)CH<sub>3<\/sub>COOH                     2) HCOOH<br \/>\n3) (CH<sub>3<\/sub>)<sub>2<\/sub>COOH              4) CH<sub>3<\/sub>CH<sub>2<\/sub>COOH<\/strong><br \/>\n<strong>Ans.<\/strong>(2) Most acidic is formic acid.<\/p>\n<p><b>13.Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of<\/b><br \/>\n<b>an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as (2005)<\/b><br \/>\n<b>1) a Schiff\u2019s base         2) an enamine<\/b><br \/>\n<b>3) an imine                    4) an amine<\/b><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25881717432_627e812179_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-22\" width=\"203\" height=\"86\" \/><\/p>\n<p><strong>14.p-cresol reacts with chloroform in alkalin medium to give the compound A which adds<br \/>\nhydrogen cyanide to form, the compound B. The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is   (2005)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373759123_91486c0d12_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-4\" width=\"363\" height=\"261\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701948920_f3bd72853d_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-23\" width=\"447\" height=\"337\" \/><\/p>\n<p style=\"text-align: center;\"><button style=\"width: 50%;\"><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/online-mock-tests?utm_source=surge&amp;utm_medium=interlinking\"><strong>Free Online Mock Tests For IIT-JEE, NEET And CBSE Exams<\/strong><\/a><\/button><\/p>\n<p><strong>15.The increasing order of the rate of HCN addition to compounds A \u2013 D is           (2006)<br \/>\n(A) HCHO                    (B) CH3COCH3<br \/>\n(C) PhCOCHj               (D) PhCOPh<br \/>\n1)A&lt;B&lt;C&lt;D      2)D&lt;B&lt;C&lt;A<br \/>\n3)D&lt;C&lt;B&lt;A       4)C&lt;D&lt;B&lt;A<\/strong><br \/>\n<strong>Ans.<\/strong>(3) Least  reactive is PH-CO-PH.<\/p>\n<p><strong>16. Phenyl magnesium bromide reacts with methanol to give(2006)<br \/>\n1)a mixture of anisole and Mg(OH)Br<br \/>\n2)a mixture of benzene and Mg(OMe)Br<br \/>\n3)a mixture of toluene and Mg(OH)Br<br \/>\n4)a mixture of phenol and Mg(Me)Br<\/strong><br \/>\n<strong>Ans.<\/strong>(2) Benzene is formed.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002505375_7699b8d784_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-5\" width=\"406\" height=\"196\" \/><br \/>\n<strong>Ans.<\/strong>(4) Iodoform is given by methyl ketone.<\/p>\n<p><strong>18.The correct order of increasing acid strength of the compounds is<br \/>\na)CH<sub>3<\/sub>C0<sub>2<\/sub>H    b) Me0CH<sub>2<\/sub>C0<sub>2<\/sub>H<br \/>\nc) CF<sub>3<\/sub>Co<sub>2<\/sub>H       d) (Me)<sub>2<\/sub> C0<sub>2<\/sub>H<\/strong><br \/>\n<strong>Ans.<\/strong>(3) CFjC OOH is most acidic.<\/p>\n<p><strong>19.The structure of the compound that gives a tribromo derivative on treatment with  bromine water is (2006)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002505175_612a46c161_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-6\" width=\"314\" height=\"200\" \/><br \/>\n<strong>Ans.<\/strong>(1) ortho and para positions of bromiantion, to -OH group.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002505145_5d19dc73ba_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-7\" width=\"484\" height=\"274\" \/><br \/>\n<strong>Ans.<\/strong>(2) Dichlorocarbene is electrophile in Reimer- Tiemann reaction.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369801784_126e5f24b8_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-8\" width=\"479\" height=\"137\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701948590_43890fdde1_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-24\" width=\"455\" height=\"284\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373758593_f81f49d261_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-9\" width=\"465\" height=\"99\" \/><br \/>\n<strong>Ans.<\/strong>(3) Any aliphatic carbon with hydrogen attached to it, in combination with benzene ring, will be oxidized to benzoic acid by KMn0<sub>4<\/sub> \/ H<sup>+<\/sup>.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373758443_e95b58806d_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-10\" width=\"488\" height=\"159\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701948280_4ce39dfcde_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-25\" width=\"376\" height=\"144\" \/><\/p>\n<p><strong>24.A liquid was mixed with ethanol and a drop of concentrated H.SO. was added. A compound with a fruity smell was formed. The liquid was        (2009)<br \/>\n1) CH<sub>3<\/sub>OH                     2) HCHO<br \/>\n3) CH<sub>3<\/sub>COCH<sub>3<\/sub>                4) CH<sub>3<\/sub>COOH<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002501875_55403b2d6c_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-26\" width=\"407\" height=\"59\" \/><\/p>\n<p><strong>25.The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is    (2009)<br \/>\n1) benzoic acid                   2) salicylaldehyde<br \/>\n3) salicylic acid                  4)phthalic acid<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002501835_c085f37208_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-27\" width=\"366\" height=\"222\" \/><\/p>\n<p><strong>26.Which of the following on heating with aqueous KOH, produces acetaldehyde ? (2009)<br \/>\n1) CH<sub>3<\/sub> COCl                 2) CH<sub>3<\/sub>CH<sub>2<\/sub>Cl<br \/>\n3) CH<sub>2<\/sub>Cl CH<sub>2<\/sub>Cl           4) CH<sub>3<\/sub>CHCl<sub>2<\/sub><\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25881716502_86247dc3c8_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-28\" width=\"354\" height=\"87\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002504635_2d47c599ef_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-11\" width=\"405\" height=\"227\" \/><br \/>\n<strong>Ans.<\/strong>(2) Hydride transfer is the slowest step.<\/p>\n<p><b>28.From Amongst the following alcohols the one that would react fastest with conc.HCl and anhydrous ZnCl<\/b><sub style=\"font-weight: bold;\">2<\/sub><b>, is (2010)<\/b><br \/>\n<b>1)2- Butanol<\/b><br \/>\n<b>2)2- Methylpropan-2-ol<\/b><br \/>\n<b>3)2-Methylpropanol<\/b><br \/>\n<b>4) 1-Butanol<\/b><br \/>\n<strong>Ans.<\/strong>(2) 3\u00b0 alcohols react fastest with ZnCl<sub>2<\/sub>\/conc. HC1 due to formation of 3\u00b0 carbocation. 2-Methylpropan-2-ol is the only 3\u00b0 alcohol<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25976586836_0aa09db8aa_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-12\" width=\"407\" height=\"273\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701947870_2d7d6b5d63_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-29\" width=\"378\" height=\"454\" \/><\/p>\n<p><strong>30.Silver Mirror test is given by which one of the following compounds ?                 (2011)<br \/>\n1) Formaldehyde          2) Benzophenone<br \/>\n3) Acetaldehyde           4) Acetone<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25881716132_cab3cb8dfa_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-30\" width=\"409\" height=\"87\" \/><\/p>\n<p><b>31. Trichloroacetaldehyde was subjected to Cannizzaro\u2019s reaction by using NaOH. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is     (2011)<\/b><br \/>\n<b>1)2,2,2-Trichloropropane<\/b><br \/>\n<b>2)Chloroform<\/b><br \/>\n<b>3)2,2,2-TrichLoroethanol<\/b><br \/>\n<b>4)Trichloromethanol<\/b><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701947360_73e112c0c6_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-31\" width=\"441\" height=\"97\" \/><\/p>\n<p><b>32.The strongest acid amongst the following compounds is    (2011)<\/b><br \/>\n<b>1)CH<\/b><sub style=\"font-weight: bold;\">3<\/sub><b>CH<\/b><sub style=\"font-weight: bold;\">2<\/sub><b>CH(CZ)C0<\/b><sub style=\"font-weight: bold;\">2<\/sub><b>H<\/b><br \/>\n<b>2)ClCH<\/b><sub style=\"font-weight: bold;\">2<\/sub><b>CH<\/b><sub style=\"font-weight: bold;\">2<\/sub><b>CH<\/b><sub style=\"font-weight: bold;\">2<\/sub><b> COOH<\/b><br \/>\n<b>3)CH3COOH<\/b><br \/>\n<b>4) HCOOH<\/b><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369797774_6e53f3a0a3_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-32\" width=\"408\" height=\"88\" \/><\/p>\n<p><strong>33.Sodium ethoxide has reacted with ethanoyl chloride. The compound that is produced in the above reaction is         (2011)<br \/>\n1) Ethyl chloride            2) Ethyl ethanoate<br \/>\n3) Diethyl ether              4) 2 \u2013 Butanone<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25881715342_f9edbe2bff_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-33\" width=\"408\" height=\"194\" \/><\/p>\n<p><strong>34.Which of the following reagents may be used to distinguish between phenol and benzoic acid?           (2011)<br \/>\n1) Molisch reagent         2) Neutral FeCl<sub>3<\/sub><br \/>\n3) Aqueous NaOH         4) Tollen\u2019s reagent<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25881715152_eaf7956cdc_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-34\" width=\"446\" height=\"87\" \/><\/p>\n<p><b>35. Iodoform can be prepared from all except (2012)<\/b><br \/>\n<b>1) Ethyl methyl ketone 2) Isopropy alcohol<\/b><br \/>\n<b>3)3-Methyl-2-butanone<\/b><br \/>\n<b>4)Isobutyl alcohol<\/b><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002500295_b816e05dc6_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-35\" width=\"436\" height=\"229\" \/><\/p>\n<p><strong>36.In the given transformation, which of the following is the most appropriate reagent ?          (2012)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25907545381_e280030ed8_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-13\" width=\"431\" height=\"167\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25976582736_4bc127301f_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-36\" width=\"508\" height=\"285\" \/><\/p>\n<p><strong>37.Arrange the following compounds in order of  decreasing acidity  (2013)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373757623_013bc23dc5_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-14\" width=\"368\" height=\"292\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002499895_f8ce48d76b_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-37\" width=\"361\" height=\"371\" \/><\/p>\n<p><b>38.Compound(A), C<\/b><sub style=\"font-weight: bold;\">8<\/sub><b>H<\/b><sub style=\"font-weight: bold;\">9<\/sub><b>Br, gives white precipitate when warmed with alcoholic AgN0<\/b><sub style=\"font-weight: bold;\">3<\/sub><b>. Oxidation of (A) gives an acid (B), C<\/b><sub style=\"font-weight: bold;\">8<\/sub><b>H<\/b><sub style=\"font-weight: bold;\">6<\/sub><b>0<\/b><sub style=\"font-weight: bold;\">4<\/sub><b>. (B) easily forms anhydride on heating. Identify the compound (A).      (2013)<\/b><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25976586306_8543ac184f_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-15\" width=\"388\" height=\"222\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369796534_5fdb4bbf0e_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-38\" width=\"359\" height=\"232\" \/><\/p>\n<p><strong>39.An organic compound A upon reaction NH<sub>3 <\/sub>gives B. On heatinmg B gives C. C in presence of KOH reacts with Br<sub>2<\/sub> to give CH<sub>3<\/sub>CH<sub>2<\/sub>NH<sub>2 <\/sub>A is     (2013)<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373757353_78415504c3_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-16\" width=\"268\" height=\"189\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25373753213_e917195535_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-39\" width=\"368\" height=\"214\" \/><\/p>\n<p><strong>40.An unknown alcohol is treated with the \u201cLucas reagent\u201d to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism (2013)<br \/>\n1)secondary alcohol by S<sub>N<\/sub>1<br \/>\n2)tertiary alcohol by S<sub>N<\/sub>1<br \/>\n3)secondary alcohol by S<sub>N<\/sub>2<br \/>\n4)tertiary alcohol by S<sub>N<\/sub>2<\/strong><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25976582256_28eb2b9aff_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-40\" width=\"346\" height=\"86\" \/><\/p>\n<p><strong>41.Sodium phenoxide when heated with C0<sub>2 <\/sub>under pressure at 125\u00b0C yields a product which on a acetylation produces C.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25976586096_dd779c744c_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-17\" width=\"461\" height=\"393\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701945550_318d420894_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-41\" width=\"434\" height=\"310\" \/><\/p>\n<p><strong>42.The most suitable reagent for the conversion of R \u2013 CH<sub>2<\/sub> \u2013 OH -&gt; R \u2013 CHO is (2014)<br \/>\n1)PCC (Pyridinium Chlorochromate)<br \/>\n2)KMn0<sub>4<\/sub><br \/>\n3)K<sub>2<\/sub>Cr<sub>2<\/sub>0<sub>7<\/sub><br \/>\n4) Cr0<sub>3<\/sub><\/strong><br \/>\n<strong>Ans.<\/strong>(1) Most suitable reagent for the conversion of 1\u00b0 alcohol to aldehyde is \u201cPCC\u201d.<\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25907544841_aaafd8c162_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-18\" width=\"474\" height=\"145\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25701945360_a48a8229f9_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-42\" width=\"438\" height=\"231\" \/><\/p>\n<p><img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/25369800084_7aedd30bd1_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-19\" width=\"403\" height=\"163\" \/><br \/>\n<strong>Ans.<\/strong><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/26002499325_ff42ea1820_o.png\" alt=\"jee-main-previous-year-papers-questions-with-solutions-chemistry-alcoholsetherscarobonyls-and-carboxylic-acids-43\" width=\"362\" height=\"87\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ans. Ans.(2) Aldehydic group gets oxidised to carboxylic group. Doyble bond breaks and carbon gets oxidised to carboxylic group. 3.An [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"JEE Main Previous Year Papers Questions With Solutions Chemistry Alcohols,Ethers,Carbonyls and Carboxylic Acids","_yoast_wpseo_metadesc":"JEE Main Previous Year Papers Questions With Solutions Chemistry Alcohols,Ethers,Carobonyls and Carboxylic Acids. jee-main-previous-year-papers- ...","custom_permalink":"study-materials\/jee-main\/previous-year-papers-questions-with-solutions\/chemistry\/alcohols-ethers-carbonyls-and-carboxylic-acids\/"},"categories":[93,21],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JEE Main Previous Year Papers Questions With Solutions Chemistry 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