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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 Analytical Chemistry MCQs

The salt that gives the aqueous solution with pH less than 7, is called as

  • Basic salt
  • Acidic salt
  • Neutral salt
  • Amphoteric salt
0 Comments
Correct Answer: B. Acidic salt

Explanation:

Salts are ionic compounds formed by the reaction of an acid and a ... Read More Details

2 Physical Chemistry MCQs

The heaviest subatomic particle among the following is

  • Electron
  • Proton
  • Neutron
  • All have mass
0 Comments
Correct Answer: C. Neutron

Explanation:

Atoms are made of three fundamental subatomic particles: electrons, protons, and neutrons. Each ... Read More Details

3 Physical Chemistry MCQs

The rays that have negative charge are ___________?

  • Anode Rays
  • Cathode Rays
  • Canal Rays
  • Gamma Rays
0 Comments
Correct Answer: B. Cathode Rays

Explanation:

Cathode rays are streams of high-speed electrons that are emitted from the cathode ... Read More Details

4 Physical Chemistry MCQs

The maximum mass of an atom is present in ___________?

  • Shell
  • Nucleus
  • Energy levels
  • Orbit
0 Comments
Correct Answer: B. Nucleus

Explanation:

An atom consists of a central nucleus surrounded by electrons. The nucleus contains ... Read More Details

5 Physical Chemistry MCQs

The subatomic particle that has a negative charge is ___________?

  • Electron
  • Proton
  • Neutron
  • None of these
0 Comments
Correct Answer: A. Electron

Explanation:

Subatomic particles are the building blocks of an atom. The three major subatomic ... Read More Details

6 Physical Chemistry MCQs

Nucleus of an atom was discovered by ?

  • Goldstein
  • James Chadwick
  • J. J. Thomson
  • Rutherford
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Correct Answer: D. Rutherford

Explanation:

The nucleus of an atom was discovered by Ernest Rutherford in ... Read More Details

7 Organic Chemistry MCQs

The general formula for alkenes is: _____________?

  • CₙH₂ₙ₊₁
  • CₙH₂ₙ₊₂
  • CₙH₂ₙ
  • CₙH₂ₙ₋₂
0 Comments
Correct Answer: C. CₙH₂ₙ

Explanation:

Alkenes are a class of unsaturated hydrocarbons that contain at least ... Read More Details

8 Organic Chemistry MCQs

Polyvinyl acetate is the polymer of __________?

  • Vinyl Chloride
  • Vinyl acetate
  • Formaldehyde
  • Methyl methacrylate
0 Comments
Correct Answer: B. Vinyl acetate

Explanation:

Polyvinyl acetate (PVA) is a synthetic polymer widely used in adhesives, paints, coatings, ... Read More Details

9 Organic Chemistry MCQs

Identify which of the following is not an unsaturated hydrocarbon.

  • C₄H₆
  • C₅H₁₂
  • C₃H₄
  • C₆H₁₀
0 Comments
Correct Answer: B. C₅H₁₂

Explanation:

Hydrocarbons are divided into two main types based on the nature of bonds ... Read More Details

10 Organic Chemistry MCQs

Aliphatic hydrocarbons with only single covalent bonds are called?

  • Alkanes
  • Alkynes
  • Alkenes
  • A & C
0 Comments
Correct Answer: A. Alkanes

Explanation:

Hydrocarbons are organic compounds made up of only carbon and hydrogen atoms. They ... Read More Details

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