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By Brijesh Sharma
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Updated on 29 Aug 2025, 17:16 IST
Chemistry is an important subject in the CBSE Class 12 Chemistry Syllabus as it explains many concepts that are useful for both cbse board exam and competitive exams. For students preparing for the Class 12 board exam, practicing objective questions becomes very important because it improves understanding and speed. That is why solving CBSE Class 12 Chemistry MCQs is one of the best ways to revise and remember important topics.
The MCQs are made from NCERT textbook chapters and are closely linked with the NCERT Solutions for Class 12 Chemistry. Many questions in exams come directly or indirectly from these chemistry chapters, so solving them builds confidence. Students can use chemistry class 12 mcqs all chapters pdf for complete practice and also go for class 12 chemistry mcq pdf download to study offline anywhere.
Practicing NCERT Chemistry Class 12 MCQ questions with answers is really one of the most effective ways to get ready for the CBSE Class 12 board exam. Consistent practice is always key, because just reading theory is not enough if you want to understand concepts deeply or score higher marks. When students solve more and more Class 12 Chemistry MCQs with answers PDF download, it helps them improve class 12 board exam score and learn the chemistry topics concepts.
CBSE Class 12 Chemistry MCQs Chapters List |
Chapter 1 The Solid State MCQs |
Chapter 2 Solutions MCQs |
Chapter 3 Electrochemistry MCQs |
Chapter 4 Chemical Kinetics MCQs |
Chapter 5 Surface Chemistry MCQs |
Chapter 6 General Principles and Processes of Isolation of Elements MCQs |
Chapter 7 The p-Block Elements MCQs |
Chapter 8 The d-and f-Block Elements MCQs |
Chapter 9 Coordination Compounds MCQs |
Chapter 10 Haloalkanes and Haloarenes MCQs |
Chapter 11 Alcohols, Phenols and Ethers MCQs |
Chapter 12 Aldehydes, Ketones and Carboxylic Acids MCQs |
Chapter 13 Amines MCQs |
Chapter 14 Biomolecules MCQs |
Chapter 15 Polymers MCQs |
Chapter 16 Chemistry in Everyday Life MCQs |
Ques: Which ligand causes the highest crystal field splitting?
a) CN⁻
b) Cl⁻
c) H₂O
d) OH⁻
Ans: (a) CN⁻
Ques: Which of the following is used as an antiseptic?
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a) Benzene
b) Phenol
c) Ethanol
d) Ether
Ans: (b) Phenol
Ques: Van’t Hoff factor (i) for K₂SO₄ in water is:
a) 1
b) 2
c) 3
d) 4
Ans: (c) 3
Ques: The bond between two amino acids in a protein is called:
a) Glycosidic bond
b) Peptide bond
c) Phosphodiester bond
d) Hydrogen bond
Ans: (b) Peptide bond
Ques: Which electrolyte is used in a dry cell?
a) H₂SO₄
b) KOH
c) NH₄Cl
d) NaOH
Ans: (c) NH₄Cl
Ques: Glucose is an example of:
a) Disaccharide
b) Monosaccharide
c) Polysaccharide
d) Protein
Ans: (b) Monosaccharide
Ques: Which reagent is used to distinguish between alcohols and phenols?
a) Fehling’s solution
b) Iodoform test
c) Neutral FeCl₃
d) Lucas reagent
Ans: (c) Neutral FeCl₃
Ques: Which element is not a transition metal?
a) Fe
b) Zn
c) Cr
d) Mn
Ans: (b) Zn
Ques: What is the product of the reaction between aniline and bromine water?
a) o-Bromoaniline
b) p-Bromoaniline
c) 2,4,6-Tribromoaniline
d) Aniline does not react with bromine water
Ans: (c) 2,4,6-Tribromoaniline
Ques: Which nucleic acid is responsible for protein synthesis?
a) DNA
b) tRNA
c) rRNA
d) Both (b) and (c)
Ans: (d) Both (b) and (c)
Ques: The Arrhenius equation represents the effect of ______ on reaction rate.
a) Catalyst
b) Temperature
c) Pressure
d) Concentration
Ans: (b) Temperature
Ques: Freons are mainly used as:
a) Antiseptics
b) Refrigerants
c) Fertilizers
d) Medicines
Ans: (b) Refrigerants
Ques: Which of the following undergoes nucleophilic substitution reaction most easily?
a) Benzyl chloride
b) Vinyl chloride
c) Chloroethane
d) Chlorobenzene
Ans: (a) Benzyl chloride
Ques: Which is a bidentate ligand?
a) NH₃
b) C₂O₄²⁻
c) CN⁻
d) Cl⁻
Ans: (b) C₂O₄²⁻
Ques: Which amine reacts with Hinsberg reagent to form a soluble product?
a) Primary amine
b) Secondary amine
c) Tertiary amine
d) Quaternary ammonium salt
Ans: (a) Primary amine
Ques: Which of the following undergoes the iodoform test?
a) Benzaldehyde
b) Acetone
c) Formaldehyde
d) Ethanol
Ans: (b) Acetone
Ques: Which law governs the solubility of gases in liquids?
a) Henry’s law
b) Raoult’s law
c) Dalton’s law
d) Boyle’s law
Ans: (a) Henry’s law
Ques: Phenol is more acidic than ethanol because:
a) Phenoxide ion is resonance stabilized
b) Ethoxide ion is resonance stabilized
c) Both are equally acidic
d) Phenol does not release H⁺ ions
Ans: (a) Phenoxide ion is resonance stabilized
Ques: Which of the following statements is true for a galvanic cell?
a) Oxidation occurs at the cathode
b) Reduction occurs at the anode
c) Electrons flow from the anode to the cathode
d) Anode is positive
Ans: (c) Electrons flow from anode to cathode
Ques: Which of the following is a primary cell?
a) Lead storage battery
b) Fuel cell
c) Dry cell
d) Nickel-cadmium cell
Ans: (c) Dry cell
Ques: What is the functional group of carboxylic acids?
a) –OH
b) –COOH
c) –CHO
d) –CO–
Ans: (b) –COOH
Ques: Which law is used to determine the mass of a substance deposited during electrolysis?
a) Henry’s law
b) Faraday’s law
c) Raoult’s law
d) Nernst equation
Ans: (b) Faraday’s law
Ques: What is the standard electrode potential of the hydrogen electrode?
a) 0.00 V
b) 1.00 V
c) -0.76 V
d) 0.34 V
Ans: (a) 0.00 V
Ques: Which of the following is a radioactive element?
a) Ce
b) U
c) La
d) Y
Ans: (b) U
Ques: Which reagent is used to convert nitrobenzene into aniline?
a) LiAlH₄
b) Zn/HCl
c) K₂Cr₂O₇
d) NaOH
Ans: (b) Zn/HCl
Ques: Which of the following has the highest boiling point?
a) Alcohol
b) Aldehyde
c) Ketone
d) Ether
Ans: (a) Alcohol
Ques: The rate of reaction is affected by:
a) Temperature
b) Concentration
c) Catalyst
d) All of these
Ans: (d) All of these
Ques: DDT is a:
a) Polymer
b) Pesticide
c) Antibiotic
d) Fuel
Ans: (b) Pesticide
Ques: Which of the following is a colligative property?
a) Surface tension
b) Osmotic pressure
c) Viscosity
d) Density
Ans: (b) Osmotic pressure
Ques: Which of the following is NOT a polysaccharide?
a) Starch
b) Glycogen
c) Cellulose
d) Sucrose
Ans: (d) Sucrose
Ques: Half-life of a first-order reaction is:
a) Proportional to initial concentration
b) Independent of initial concentration
c) Inversely proportional to initial concentration
d) Depends on pressure
Ans: (b) Independent of initial concentration
Ques: KMnO₄ is used as:
a) Reducing agent
b) Oxidizing agent
c) Both
d) None
Ans: (b) Oxidizing agent
Ques: Which type of deviation is shown by ethanol and water mixture?
a) Positive
b) Negative
c) No deviation
d) None of these
Ans: (a) Positive
Ques: Which test is used to distinguish between aldehydes and ketones?
a) Lucas test
b) Tollens’ test
c) Fehling’s test
d) Both (b) and (c)
Ans: (d) Both (b) and (c)
Ques: Which of the following will undergo SN1 reaction most easily?
a) CH₃Cl
b) (CH₃)₃CBr
c) CH₃CH₂Br
d) CH₃CH₂Cl
Ans: (b) (CH₃)₃CBr
Ques: Which of the following is a secondary amine?
a) NH₃
b) CH₃NH₂
c) (CH₃)₂NH
d) (CH₃)₃N
Ans: (c) (CH₃)₂NH
Ques: Which of the following is a chelating ligand?
a) CN⁻
b) EDTA
c) NH₃
d) Cl⁻
Ans: (b) EDTA
Ques: Which of the following is a transition element?
a) Ca
b) Sc
c) Na
d) K
Ans: (b) Sc
Ques: Which of the following is used as an anaesthetic?
a) CHCl₃
b) CCl₄
c) CH₂Cl₂
d) CF₂Cl₂
Ans: (a) CHCl₃
Ques: Which of the following amines is most basic?
a) NH₃
b) CH₃NH₂
c) C₆H₅NH₂
d) (C₂H₅)₂NH
Ans: (d) (C₂H₅)₂NH
Ques: Lanthanide contraction is due to:
a) Poor shielding by 4f electrons
b) High nuclear charge
c) Both (a) and (b)
d) None of these
Ans: (c) Both (a) and (b)
Ques: The reduction of aldehydes leads to the formation of:
a) Alcohols
b) Ketones
c) Carboxylic acids
d) Esters
Ans: (a) Alcohols
Ques: Which compound is commonly known as wood spirit?
a) Ethanol
b) Methanol
c) Phenol
d) Glycerol
Ans: (b) Methanol
Ques: Which of the following is an essential amino acid?
a) Glycine
b) Alanine
c) Lysine
d) Proline
Ans: (c) Lysine
Ques: Which theory explains the colour and magnetic properties of coordination compounds?
a) VBT
b) Crystal field theory
c) Molecular orbital theory
d) Band Theory
Ans: (b) Crystal field theory
Ques: What is the unit of molality?
a) mol/L
b) mol/kg
c) g/L
d) kg/mol
Ans: (b) mol/kg
Ques: Activation energy is the:
a) Minimum energy required for a reaction to occur
b) Maximum energy required for a reaction
c) Energy of the reactants
d) Energy of the products
Ans: (a) Minimum energy required for a reaction to occur
Ques: What is the unit of rate constant for a first-order reaction?
a) s⁻¹
b) mol L⁻¹ s⁻¹
c) L mol⁻¹ s⁻¹
d) L² mol⁻² s⁻¹
Ans: (a) s⁻¹
Ques: Which of the following is a colligative property?
a) Surface tension
b) Osmotic pressure
c) Viscosity
d) Density
Ans: (b) Osmotic pressure
Ques: Which of the following is a transition element?
a) Ca
b) Sc
c) Na
d) K
Ans: (b) Sc
For many students, Chemistry seems tough because it includes both numerical problems and theory-based concepts. Practicing Class 12 Chemistry MCQs is one of the smartest ways to overcome this challenge. Multiple Choice Questions are short, but they test your depth of knowledge. Below are some useful tips:
Solving MCQs is not just about practice, it actually changes the way students prepare for exams. Let’s see the benefits:
Conclusion, Practicing CBSE Class 12 Chemistry MCQs is one of the best ways to revise concepts, increase speed, and reduce exam stress. Whether you use class 12 chemistry mcq pdf download or practice online tests, regular solving of MCQs is like a secret weapon for scoring high marks. In simple words, more practice = more confidence = better result.
CBSE Class 12 Chemistry MCQs are objective type questions designed from the NCERT Class 12 Chemistry syllabus. They test a student’s understanding of concepts, reactions, and numerical problems in a simple multiple-choice format.
Practicing CBSE Class 12 Chemistry MCQs improves speed, accuracy, and conceptual clarity. It also helps students prepare for both the Class 12 board exam and competitive exams like JEE or NEET.
Students can download chemistry class 12 MCQs all chapters PDF from Infinity Learn website and study resources. Many of these files are available free for class 12 chemistry MCQ PDF download, making them easy to study offline.
Yes, most MCQs are based directly on NCERT textbooks. Practicing NCERT solutions for Class 12 Chemistry ensures that students cover important exam-oriented concepts.
Solved MCQs of Chemistry Class 12 allow students to check correct answers instantly, learn from mistakes, and strengthen weak areas. This self-assessment improves confidence before exams.