Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: P Block Elements

Question:

The correct statement(s) about \(O_3\) is (are)

  1. \(O-O\) bond length are equal
  2. Thermal decomposition of \(O_3\) is endothermic
  3. \(O_3\) is diamagnetic in nature
  4. \(O_3\) has bent structure

Choose the correct answer from the options given below:

Options:

A, C, D

A, B, D

B, C, D

A, B, C

Correct Answer:

A, C, D

Explanation:

The correct answer is option 1. A, C, D

  • (A) O–O bond lengths are equal → Correct
    Due to resonance, both O–O bonds in ozone have equal bond length.

  • (B) Thermal decomposition of (O_3) is endothermic → Incorrect
    Decomposition of ozone to oxygen releases heat, so it is exothermic.

  • (C) (O_3) is diamagnetic in nature → Correct
    All electrons in ozone are paired.

  • (D) (O_3) has bent structure → Correct
    Ozone has a bent (angular) molecular shape.