Verified Solution • 2025–26 Session moderate

QJEEM23Ch7c32: JEE Main 2023 Chemistry - Class 11 JEEM23Ch7c32 Solution: Consider the following statements: (A) NF 3 molecule has a…

Consider the following statements:

(A) NF3 molecule has a trigonal planar structure.

(B) Bond length of N2\mathrm{N}_{2} is shorter than O2\mathrm{O}_{2} .

(C) Isoelectronic molecules or ions have identical bond order.

(D) Dipole moment of H2S\mathrm{H}_{2}\mathrm{S} is higher than that of water molecule.

Choose the correct answer from the options given below:

Multiple Choice Options

  • A (C) and (D) are correct
  • B (A) and (B) are correct
  • C (B) and (C) are correct
  • D (A) and (D) are correct

Step-by-Step Verified Solution

The correct answer is (B) and (C).

(A) NF3 molecule has a trigonal pyramidal structure, not a trigonal planar structure. Therefore, statement (A) is false.

(B) The bond length of N2\mathrm{N}_{2} is shorter than that of O2\mathrm{O}_{2} due to the smaller atomic radius of nitrogen compared to oxygen. Therefore, statement (B) is true.

(C) Isoelectronic molecules or ions have the same number of electrons and hence the same bond order. Therefore, statement (C) is true.

(D) The dipole moment of water ( H2O\mathrm{H}_{2}\mathrm{O} ) is higher than that of H2S\mathrm{H}_{2}\mathrm{S} due to the greater electronegativity of oxygen compared to sulfur. Therefore, statement (D) is false.

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