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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 statements is incorrect about fluorine (F)?

  • Fluorine is restricted to –1 oxidation state
  • Fluorine follows octet rule as well as extended octet rule
  • Fluorine has the lowest dissociation energy among the halogens
  • Both B and C
0 Comments
Correct Answer: D. Both B and C

Explanation:

Fluorine (F) is the most electronegative element in the periodic table and exhibits ... Read More Details

2 Inorganic Chemistry MCQs

Which of the following hydrogen halides is the weakest acid in water?

  • HF
  • HCl
  • HBr
  • HI
0 Comments
Correct Answer: A. HF

Explanation:

Hydrogen halides are binary compounds of hydrogen with halogens: HF, HCl, HBr, and ... Read More Details

3 Inorganic Chemistry MCQs

What is the ground-state electronic configuration of halogens (Group VII A)?

  • ns²p²
  • ns²p⁴
  • ns²p⁵
  • ns²p⁶
0 Comments
Correct Answer: C. ns²p⁵

Explanation:

Halogens are elements in Group VII A (17) of the periodic table, including ... Read More Details

4 Inorganic Chemistry MCQs

Which of the following oxohalogen acids is the strongest acid?

  • HClO
  • HClO₂
  • HClO₃
  • HClO₄
0 Comments
Correct Answer: D. HClO₄

Explanation:

Oxohalogen acids are acids that contain halogens bonded to oxygen, forming structures like ... Read More Details

5 Inorganic Chemistry MCQs

Bleaching powder is an example of __________________?

  • Normal salt
  • Double salt
  • Mixed salt
  • Complex
0 Comments
Correct Answer: C. Mixed salt

Explanation:

Bleaching powder is a widely used inorganic compound in industry and households. It ... Read More Details

6 Inorganic Chemistry MCQs

Which of the following iodine oxides is used for the quantitative analysis of carbon monoxide (CO)?

  • I₂O₄
  • I₄O₂
  • I₂O₅
  • All are equally useful
0 Comments
Correct Answer: C. I₂O₅

Explanation:

Iodine pentoxide (I₂O₅) is a powerful oxidizing agent widely used in inorganic chemistry ... Read More Details

7 Inorganic Chemistry MCQs

Which of the following halogens has the highest electronegativity?

  • Fluorine
  • Chlorine
  • Bromine
  • Iodine
0 Comments
Correct Answer: A. Fluorine

Explanation:

Electronegativity is the ability of an atom to attract electrons in a chemical ... Read More Details

8 Inorganic Chemistry MCQs

Fluorine can react with __________________?

  • Xenon (Xe)
  • Krypton (Kr)
  • Radon (Rn)
  • All of the above
0 Comments
Correct Answer: D. All of the above

Explanation:

Fluorine is the most electronegative and reactive element in the periodic table, which ... Read More Details

9 Inorganic Chemistry MCQs

Which of the following hydrogen halides is the weakest reducing agent?

  • HF
  • HBr
  • HCl
  • HI
0 Comments
Correct Answer: A. HF

Explanation:

Hydrogen halides are binary compounds of hydrogen with halogens, including HF, HCl, HBr, ... Read More Details

10 Inorganic Chemistry MCQs

In which compound of xenon does xenon have an oxidation state of +6?

  • XeF₄
  • XeOF₄
  • XeOF₂
  • Na₄XeO₆
0 Comments
Correct Answer: B. XeOF₄

Explanation:

Xenon, a noble gas, can form several compounds despite its inert nature. The ... Read More Details

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