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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

The property by virtue of which metals can be beaten into thin sheets is known as?

  • Ductility
  • Malleability
  • Conductivity
  • Density
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Correct Answer: B. Malleability

Explanation:

The property of metals that allows them to be beaten into thin sheets ... Read More Details

2 Chemistry MCQs

Element extracted from sea water?

  • Beryllium
  • Magnesium
  • Aluminium
  • None of These
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Correct Answer: B. Magnesium

Explanation:

Magnesium is one of the few elements that can be extracted directly from ... Read More Details

3 Chemistry MCQs

Which of the following is the most stable element?

  • Uranium
  • Hydrogen
  • Oxygen
  • Lead
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Correct Answer: D. Lead

Explanation:

The most stable element among the given options is Lead (Pb), particularly the ... Read More Details

4 Chemistry MCQs

Vertical columns in the periodic table of elements are called as__________?

  • Periods
  • Groups
  • Rows
  • Lanthanoids series
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Correct Answer: B. Groups

Explanation:

In the periodic table of elements, the vertical columns are known as Groups. ... Read More Details

5 Chemistry MCQs

The molecular mass of a water molecule is __________?

  • 16 amu
  • 17 amu
  • 18 amu
  • 20 amu
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Correct Answer: C. 18 amu

Explanation:

The molecular mass of a water (H₂O) molecule is 18 atomic mass units ... Read More Details

6 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 1911 through ... Read More Details

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