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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 Inorganic Chemistry MCQs

Which of the following is used with milk of lime to kill fungus and molds?

  • Chlorine
  • Silver nitrate
  • Copper Sulfate
  • Nitric acid
0 Comments
Correct Answer: C. Copper Sulfate

Explanation:

Milk of lime is a common name for calcium hydroxide suspension in water. ... Read More Details

2 Analytical Chemistry MCQs

At what digit of pH scale pH is neutral?

  • 5
  • 3
  • 7
  • 10
0 Comments
Correct Answer: C. 7

Explanation:

The pH scale is used to measure the acidity or alkalinity of a ... Read More Details

3 Analytical Chemistry MCQs

The range of acid pH on pH scale is ?

  • 9 to 8
  • 6 to 7
  • 1 to 6
  • 1 to 10
0 Comments
Correct Answer: C. 1 to 6

Explanation:

The pH scale is a standard scale ranging from 0 to 14 that ... Read More Details

4 Analytical Chemistry MCQs

Alkaline pH scale starts from?

  • 8 to 14
  • 6 to 10
  • 7 to 11
  • 0 to 14
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Correct Answer: A. 8 to 14

Explanation:

The pH scale is a numerical scale ranging from 0 to 14 that ... Read More Details

5 Analytical Chemistry MCQs

The substance which resist in change in pH is called?

  • Neutralization
  • Osmosis
  • Buffer
  • Active transport
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Correct Answer: C. Buffer

Explanation:

A buffer is a substance or solution that resists a significant change in ... Read More Details

6 Organic Chemistry MCQs

Quality of petrol is measured by?

  • Octane number
  • Heptane number
  • Reforming
  • Refining
0 Comments
Correct Answer: A. Octane number

Explanation:

The quality of petrol (gasoline) is commonly measured by its octane number. The ... Read More Details

7 Chemistry MCQs

Who is often referred to as the “father of Chemistry”?

  • Isaac Newton
  • Antoine Lavoisier
  • Dmitri Mendeleev
  • Albert Einstein
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Correct Answer: B. Antoine Lavoisier

Explanation:

The title “Father of Chemistry” is most often given to Antoine Lavoisier, a ... Read More Details

8 Physical Chemistry MCQs

The theory which explains the behavior of particles of matter in motion is called?

  • Bohr’s Theory
  • Dalton’s Theory
  • Kinetic Molecular Theory
  • None
0 Comments
Correct Answer: C. Kinetic Molecular Theory

Explanation:

The Kinetic Molecular Theory (KMT) is the theory that explains the behavior of ... Read More Details

9 Physical Chemistry MCQs

According to Kinetic Molecular Theory gas molecules move in_______path?

  • Straight
  • Parabolic
  • Zig-zag
  • Hyperbolic
0 Comments
Correct Answer: A. Straight

Explanation:

The Kinetic Molecular Theory (KMT) explains the behavior of gases based on the ... Read More Details

10 Physical Chemistry MCQs

Value of normal atmospheric pressure at sea level at 0°C is?

  • 1 atm
  • 760 Torr
  • 76 cm of Hg
  • All of these
0 Comments
Correct Answer: D. All of these

Explanation:

The term atmospheric pressure refers to the pressure exerted by the weight of ... Read More Details

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