{"id":718095,"date":"2024-05-14T16:18:34","date_gmt":"2024-05-14T10:48:34","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=718095"},"modified":"2024-05-14T16:18:34","modified_gmt":"2024-05-14T10:48:34","slug":"chemistry-worksheets-class-7-on-chapter-5-acids-bases-and-salts-with-answers-set-1","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/worksheets-class-7-science\/acids-bases-and-salts\/","title":{"rendered":"Chemistry Worksheets Class 7 on Chapter 5 Acids, Bases and Salts with Answers &#8211; Set 1"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/worksheets-class-7-science\/acids-bases-and-salts\/#Download_Class_7_Chemistry_Worksheet_on_Chapter_5_Acids_Bases_and_Salts_Set_1_PDF\" title=\"Download Class 7 Chemistry Worksheet on Chapter 5 Acids, Bases and Salts Set 1 PDF\">Download Class 7 Chemistry Worksheet on Chapter 5 Acids, Bases and Salts Set 1 PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/worksheets-class-7-science\/acids-bases-and-salts\/#CBSE_Class_7_Chemistry_Chapter_5_Acids_Bases_and_Salts_Worksheet_-_Set_1\" title=\"CBSE Class 7 Chemistry Chapter 5 Acids, Bases and Salts Worksheet \u2013 Set 1\">CBSE Class 7 Chemistry Chapter 5 Acids, Bases and Salts Worksheet \u2013 Set 1<\/a><\/li><\/ul><\/nav><\/div>\n<p>Everyday items can be sorted into three groups: acids, bases, and neutral things. Take lemon juice, for instance; it&#8217;s acidic. Baking soda solution is basic, and common salt is neutral. Lemon juice is sour because it has citric acid. Baking soda has sodium bicarbonate, which makes it a base. Salt, like table salt, is made when an acid and a base react and cancel each other out.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Download_Class_7_Chemistry_Worksheet_on_Chapter_5_Acids_Bases_and_Salts_Set_1_PDF\"><\/span>Download Class 7 Chemistry Worksheet on Chapter 5 Acids, Bases and Salts Set 1 PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\t\t<div class=\"download-pdf-container\">\n\t\t\t<span class=\"title\">Do you need help with your Homework? 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href=\"\/surge\/?pdfemb-serveurl=https%3A%2F%2Finfinitylearn.com%2Fsurge%2Fwp-content%2Fuploads%2Fsecurepdfs%2F2024%2F05%2F7-sci-les-5-2.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-mobile-width=\"0\"  data-scrollbar=\"both\" data-download=\"off\" data-tracking=\"on\" data-newwindow=\"on\" data-pagetextbox=\"off\" data-scrolltotop=\"on\" data-startzoom=\"100\" data-startfpzoom=\"100\" data-download-nonce=\"6c08e67327\" data-disablerightclick=\"on\" data-toolbar=\"top\" data-toolbar-fixed=\"on\">Download Class 7 Chemistry Worksheet on Chapter 5 Acids, Bases and Salts Set 1 PDF<br\/><\/a>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Class_7_Chemistry_Chapter_5_Acids_Bases_and_Salts_Worksheet_-_Set_1\"><\/span>CBSE Class 7 Chemistry Chapter 5 <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-7\/science\/chapter-5-acid-bases-and-salts\/\" target=\"_blank\" rel=\"noopener\">Acids, Bases and Salts<\/a> Worksheet \u2013 Set 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Answer the following questions by choosing the correct option or filling in the blanks.<\/strong><\/p>\n<p><strong>1. What is an acid?<\/strong><\/p>\n<p>a) A substance that tastes sour<br \/>\nb) A substance that tastes sweet<br \/>\nc) A substance that feels slippery<br \/>\nd) A substance that is odorless<\/p>\n<p>Answer: a) A substance that tastes sour<\/p>\n<p><strong>2. Which of the following is a natural acid?<\/strong><\/p>\n<p>a) Lemon juice<br \/>\nb) Sugar<br \/>\nc) Milk<br \/>\nd) Water<\/p>\n<p>Answer: a) Lemon juice<\/p>\n<p><strong>3. What is a base?<\/strong><\/p>\n<p>a) A substance that tastes sour<br \/>\nb) A substance that tastes bitter<br \/>\nc) A substance that feels slippery<br \/>\nd) A substance that is colorless<\/p>\n<p>Answer: b) A substance that tastes bitter<\/p>\n<p><strong>4. Which of the following is a natural base?<\/strong><\/p>\n<p>a) Vinegar<br \/>\nb) Baking soda<br \/>\nc) Orange juice<br \/>\nd) Tea<\/p>\n<p>Answer: b) Baking soda<\/p>\n<p><strong>5. What happens when an acid reacts with a base?<\/strong><\/p>\n<p>a) It produces water and salt<br \/>\nb) It produces water and sugar<br \/>\nc) It produces water and vinegar<br \/>\nd) It produces water and lemon juice<\/p>\n<p>Answer: a) It produces water and salt<\/p>\n<p><strong>6. What is the pH scale used for?<\/strong><\/p>\n<p>a) To measure the temperature of a substance<br \/>\nb) To measure the acidity or basicity of a substance<br \/>\nc) To measure the weight of a substance<br \/>\nd) To measure the volume of a substance<\/p>\n<p>Answer: b) To measure the acidity or basicity of a substance<\/p>\n<p><strong>7. Which of the following has a pH value less than 7?<\/strong><\/p>\n<p>a) Lemon juice<br \/>\nb) Water<br \/>\nc) Milk<br \/>\nd) Soap<\/p>\n<p>Answer: a) Lemon juice<\/p>\n<p><strong>8. Which of the following has a pH value more than 7?<\/strong><\/p>\n<p>a) Vinegar<br \/>\nb) Orange juice<br \/>\nc) Baking soda solution<br \/>\nd) Coffee<\/p>\n<p>Answer: c) Baking soda solution<\/p>\n<p><strong>9. What is a salt?<\/strong><\/p>\n<p>a) A substance formed by the reaction between an acid and a base<br \/>\nb) A sweet-tasting substance<br \/>\nc) A sour-tasting substance<br \/>\nd) A bitter-tasting substance<\/p>\n<p>Answer: a) A substance formed by the reaction between an acid and a base<\/p>\n<p><strong>10. Which of the following is an example of a salt?<\/strong><\/p>\n<p>a) Sugar<br \/>\nb) Table salt<br \/>\nc) Lemon juice<br \/>\nd) Honey<\/p>\n<p>Answer: b) Table salt<\/p>\n<p><strong>11. Complete the following chemical reaction:<\/strong><\/p>\n<p>Acid + Base \u2192 _______ + _______<\/p>\n<p>Answer: Water + Salt<\/p>\n<p><strong>12. True or False: Acids are sour in taste and turn blue litmus paper red.<\/strong><\/p>\n<p>Answer: True<\/p>\n<p><strong>13. True or False: Bases are bitter in taste and turn red litmus paper blue.<\/strong><\/p>\n<p>Answer: True<\/p>\n<p><strong>14. Name one natural source of an acid and one natural source of a base.<\/strong><\/p>\n<p>Answer: Lemon juice (acid), Baking soda (base)<\/p>\n<p><strong>15. Explain the difference between an acid and a base in one sentence.<\/strong><\/p>\n<p>Answer: Acids taste sour and turn blue litmus paper red, while bases taste bitter and turn red litmus paper blue.<\/p>\n<p><strong>Bonus Question: What is the pH value of a neutral substance?<\/strong><\/p>\n<p>Answer: 7<\/p>\n<p>Score: ____\/15<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Everyday items can be sorted into three groups: acids, bases, and neutral things. Take lemon juice, for instance; it&#8217;s acidic. 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