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Chemistry MCQs

Prepare for competitive exams with our topic-wise Chemistry MCQs covering fundamental and advanced concepts. These multiple-choice questions include atomic structure, chemical bonding, periodic table, acids & bases, organic chemistry, thermodynamics, chemical equations, mole concept, electrochemistry, and biochemistry. Ideal for science students and job aspirants appearing in PPSC, FPSC, CSS, NTS, SPSC, BPSC, KPSC, ETEA, AJKPSC, and other testing services. A valuable resource for teachers, educators, and candidates targeting science educator posts, laboratory roles, and general science sections in public sector exams.

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1 Organic Chemistry MCQs

Dimethyl ketones are usually characterized through ?

  • Tollen’s reagent
  • Iodoform test
  • Schiff’s test
  • Benedict’s reagent
0 Comments
Correct Answer: B. Iodoform test

Explanation:

Dimethyl ketones, also known as acetone and its derivatives, are important members of ... Read More Details

2 Organic Chemistry MCQs

The typical reactions of aldehyde is ?

  • Electrophilic addition
  • Nucleophilic substitution
  • Nucleophilic addition
  • Nucleophilic elimination
0 Comments
Correct Answer: C. Nucleophilic addition

Explanation:

Aldehydes are organic compounds that contain the carbonyl group (C=O) with at least ... Read More Details

3 Organic Chemistry MCQs

Fehling solution react with HCHO to form precipitate of ?

  • White colour
  • Yellow colour
  • Red colour
  • Blue colour
0 Comments
Correct Answer: C. Red colour

Explanation:

Fehling’s solution is a chemical reagent used to test for the presence of ... Read More Details

4 Organic Chemistry MCQs

In Aldehydes and Ketones, carbon of carbonyl group is ?

  • sp³ hybridised
  • sp² hybridised
  • sp hybridised
  • Unhybridised
0 Comments
Correct Answer: B. sp² hybridised

Explanation:

The carbonyl group (C=O) is the defining feature of aldehydes and ketones. In ... Read More Details

5 Physical Chemistry MCQs

The process by which a substance absorbs moisture upon exposure to atmosphere is called?

  • Efflorescence
  • Dehydrogenation
  • Desalination
  • Deliquescence
0 Comments
Correct Answer: D. Deliquescence

Explanation:

When certain solid substances are exposed to the atmosphere, they interact with water ... Read More Details

6 Organic Chemistry MCQs

Amino acids are a product of the digestion of?

  • Carbohydrates
  • Fats
  • Proteins
  • Vitamins
0 Comments
Correct Answer: C. Proteins

Explanation:

Proteins are complex biological macromolecules made of long chains of amino acids. During ... Read More Details

7 Chemistry MCQs

Which metal is called “metal of hope”?

  • Uranium
  • Titanium
  • Gold
  • Platinum
0 Comments
Correct Answer: A. Uranium

Explanation:

The metal that is called the “metal of hope” is Uranium. This designation ... Read More Details

8 Chemistry MCQs

Which of the following will you use to remove rust stains on cloth?

  • Alcohol
  • Oxalic Acid Solution
  • Kerosene Oil
  • None of the above
0 Comments
Correct Answer: B. Oxalic Acid Solution

Explanation:

Rust stains on clothes are a common problem and are caused by iron ... Read More Details

9 Chemistry MCQs

Fog is an example of ?

  • Gas in gas
  • Gas in liquid
  • Liquid in Gas
  • Liquid in liquid
0 Comments
Correct Answer: C. Liquid in Gas

Explanation:

Fog is a meteorological phenomenon that appears as a cloud near the Earth's ... Read More Details

10 Chemistry MCQs

Smoke is a solution of ?

  • Solid in solid
  • Solid in liquid
  • Solid in gas
  • Gas in gas
0 Comments
Correct Answer: C. Solid in gas

Explanation:

Smoke is a common phenomenon observed during the combustion of materials such as ... Read More Details

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