Identify the correct orders against the property mentioned :A. H_2O > NH_3 > CHCl_3 - dipole momentB. XeF_4 > XeO_3 > XeF_2 - number of lone pairs on central atomC. O-H > C-H > N-O - bond lengthD. N_2 > O_2 > H_2 - bond enthalpyChoose the correct ans…

Identify the correct orders against the property mentioned :

A. \(\mathrm{H_2O > NH_3 > CHCl_3}\) - dipole moment

B. \(\mathrm{XeF_4 > XeO_3 > XeF_2}\) - number of lone pairs on central atom

C. O-H > C-H > N-O - bond length

D. \(\mathrm{N_2 > O_2 > H_2}\) - bond enthalpy

Choose the correct answer from the options given below :

1. A, D only

2. B, D only

3. A, C only

4. B, C only

Doubtly Asked 30 Oct 2026 NEET UG 2025 Practice test neet Save WhatsApp Report

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Best answer

Answer: 1. A, D only

A true: \(\mathrm{H_2O}\) (1.85 D) > \(\mathrm{NH_3}\) (1.47 D) > \(\mathrm{CHCl_3}\) (1.04 D).
B false: lone pairs on Xe are \(\mathrm{XeF_4}\) = 2, \(\mathrm{XeO_3}\) = 1, \(\mathrm{XeF_2}\) = 3, so the order is \(\mathrm{XeF_2>XeF_4>XeO_3}\).
C false: bond lengths: N-O (about 140 pm) > C-H (109 pm) > O-H (96 pm).
D true: bond enthalpy \(\mathrm{N_2}\) (946) > \(\mathrm{O_2}\) (498) > \(\mathrm{H_2}\) (436 kJ/mol).

A and D only: option (1).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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