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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 Chemistry MCQs

Which metal is used as a catalyst in the hydrogenation of oils?

  • Ni
  • Pb
  • Cu
  • Pt
0 Comments
Correct Answer: A. Ni

Explanation:

The hydrogenation of oils is an important chemical process in which unsaturated fats ... Read More Details

2 Chemistry MCQs

How many elements are present in the modern periodic table?

  • 118
  • 181
  • 108
  • 188
0 Comments
Correct Answer: A. 118

Explanation:

The modern periodic table is a systematic arrangement of all known chemical elements ... Read More Details

3 Organic Chemistry MCQs

Out of Alkane, Alkene & Alkyne, which one is more acidic?

  • Alkane
  • Alkene
  • Alkyne
  • All have same
0 Comments
Correct Answer: C. Alkyne

Explanation:

The acidity of hydrocarbons (alkanes, alkenes, alkynes) depends on the stability of the ... Read More Details

4 Organic Chemistry MCQs

Compound containing two halogen atoms on two adjacent carbon atoms are called as ?

  • Glycols
  • Vicinal dihalides
  • Geminal dihalides
  • Diols
0 Comments
Correct Answer: B. Vicinal dihalides

Explanation:

In organic chemistry, dihalides are compounds that contain two halogen atoms (Cl, Br, ... Read More Details

5 Inorganic Chemistry MCQs

Positron has __________ charge.

  • +ve
  • -ve
  • Neutral
  • None of the above
0 Comments
Correct Answer: A. +ve

Explanation:

A positron is a fundamental particle that is considered the antiparticle of the ... Read More Details

6 Inorganic Chemistry MCQs

Atomic mass of an atom is present in the ?

  • Shell
  • Orbit
  • Nucleus
  • Orbital
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Correct Answer: C. Nucleus

Explanation:

The atomic mass of an atom is concentrated in its nucleus. The nucleus, ... Read More Details

7 Inorganic Chemistry MCQs

Cations possess __________ charge?

  • +ve
  • -ve
  • Neutral
  • None
0 Comments
Correct Answer: A. +ve

Explanation:

A cation is a type of ion that carries a positive charge. The ... Read More Details

8 Inorganic Chemistry MCQs

One water molecule can form a maximum of ______ hydrogen bonds.

  • 2
  • 3
  • 4
  • None
0 Comments
Correct Answer: C. 4

Explanation:

A water molecule (H₂O) can form a maximum of four hydrogen bonds. This ... Read More Details

9 Inorganic Chemistry MCQs

In a water molecule, hydrogen and oxygen are held together by ______ bond.

  • Ionic
  • Covalent
  • Hydrogen
  • Dating
0 Comments
Correct Answer: B. Covalent

Explanation:

In a water molecule (H₂O), hydrogen and oxygen atoms are held together by ... Read More Details

10 Inorganic Chemistry MCQs

The chemical symbol for silver is ?

  • Au
  • Ag
  • Sv
  • At
0 Comments
Correct Answer: B. Ag

Explanation:

The chemical symbol for silver is Ag. This symbol comes from the Latin ... Read More Details

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