info@jobexams.pk
Job Exams Hero

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.

Browse Categories
Quick Results 0 found

Question Coming Soon!

"" isn't in our database yet, but we're adding new questions daily.

1 Chemistry MCQs

Which chemical is used as a fixer in photography?

  • Sodium sulphate
  • Borax
  • Sodium thiosulphate
  • Ammonium sulphate
0 Comments
Correct Answer: C. Sodium thiosulphate

Explanation:

In photography, after a photographic film or paper is exposed to light, a ... Read More Details

2 Chemistry MCQs

Which product is obtained in the manufacture of soap from oils?

  • Sodium chloride
  • Sodium hydroxide
  • Fats
  • Glycerine
0 Comments
Correct Answer: D. Glycerine

Explanation:

Soap is manufactured from oils and fats through a chemical process called saponification. ... Read More Details

3 Chemistry MCQs

What is the melting point of Tungsten (W)?

  • 1000 °C
  • 2000 °C
  • 3000 °C
  • 4000 °C
0 Comments
Correct Answer: C. 3000 °C

Explanation:

Tungsten (chemical symbol W) is a transition metal in the periodic table known ... Read More Details

4 Chemistry MCQs

Which of the following elements is a transition element?

  • Chlorine (Cl)
  • Copper (Cu)
  • Sulfur (S)
  • None of these
0 Comments
Correct Answer: B. Copper (Cu)

Explanation:

Transition elements are chemical elements that belong to the d-block of the periodic ... Read More Details

5 Chemistry MCQs

In chemistry, what does homologous mean?

  • Same chemical properties
  • Same chemical numbers
  • Different chemical properties
  • Different chemical numbers
0 Comments
Correct Answer: A. Same chemical properties

Explanation:

In chemistry, the term homologous refers to compounds that belong to a homologous ... Read More Details

6 Chemistry MCQs

Which fuel has the highest energy value?

  • Charcoal
  • Gasoline
  • Hydrogen
  • None of these
0 Comments
Correct Answer: C. Hydrogen

Explanation:

Fuels are substances that release energy when they undergo combustion. The energy released ... Read More Details

7 Chemistry MCQs

What is the compound responsible for the characteristic odour of garlic?

  • A fluorine compound
  • A sulphur compound
  • A chlorine compound
  • None of these
0 Comments
Correct Answer: B. A sulphur compound

Explanation:

The strong and distinctive odour of garlic is due to the presence of ... Read More Details

8 Chemistry MCQs

Which substance is mainly used in the making of matchsticks?

  • Sulphur
  • Zinc
  • Acid
  • Phosphorus
0 Comments
Correct Answer: D. Phosphorus

Explanation:

The making of matchsticks is a classic example of applied chemistry. The main ... Read More Details

9 Chemistry MCQs

Cooking gas is mainly a mixture of which two gases?

  • Hydrogen and Oxygen
  • Methane and Carbon Dioxide
  • Methane and Oxygen
  • None of these
0 Comments
Correct Answer: C. Methane and Oxygen

Explanation:

Cooking gas is a common term used for the fuel that powers stoves ... Read More Details

10 Physical Chemistry MCQs

Elements that emit natural radioactivity are known as ?

  • Radio elements
  • Active elements
  • Radioactive elements
  • Nuclear elements
0 Comments
Correct Answer: C. Radioactive elements

Explanation:

In nuclear chemistry, some elements naturally emit radioactive particles or radiation from their ... Read More Details

Question Categories
General Knowledge Category MCQ'S
Computer Category MCQ'S
Chemistry Category MCQ'S
Pak Departmental Laws & Rules MCQs