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Chemical Bonding and Molecular Structure · Question 17

JEE Main 2026 (Online) 23rd January Evening ShiftMCQHard📈 Topic in 32% papers+4−1
1

Which statements are NOT TRUE about XeO2F2? Choose the correct answer from the options given below :

  1. B, D and E Only
  2. B and D Only
  3. B, C and E Only
  4. A and D Only

Answer

(3) B, C and E Only

Solution

In XeO2F2, Xe forms two Xe=O double bonds and two Xe–F single bonds and keeps one lone pair.

σ-bond pairs = 4, lone pair = 1 sp3d, trigonal bipyramidal arrangement with lone pair equatorial see-saw shape. A is true.

Electrons in the valence shell of Xe = 2 × 4 (two Xe=O) + 2 × 2 (two Xe–F) + 2 (lone pair) = 14 electrons = 7 electron pairs.

B (5 electron pairs) and E (16 electrons) are not true.

The two O atoms are equatorial: O–Xe–O angle ≈ 105° (not 180°) C is not true.

The two F atoms are axial: F–Xe–F angle ≈ 174°, close to 180° D is true.

NOT TRUE: B, C and E.

Answer: (3)

JEE Main 2026 (Online) 23rd January Evening Shift

Keep practising — Chemical Bonding and Molecular Structure

2

Two p-block elements X and Y form fluorides of the type EF3. The fluoride compound XF3 is a Lewis acid and YF3 is a Lewis base. The hybridizations of the central atoms of XF3 and YF3 respectively are

  1. sp2 and sp3
  2. Both sp3
  3. Both sp2
  4. sp3 and sp2
JEE Main 2026 (Online) 22nd January Morning Shift
3

The formal charges on the atoms marked as (1) to (4) in the Lewis representation of HNO3 molecule respectively are [figure]

  1. 0, 0, -1, +1
  2. 0, -1, 0, +1
  3. 0, +1, 0, -1
  4. +1, 0, 0, -1
JEE Main 2026 (Online) 22nd January Morning Shift
4

Among H2S, H2O, NF3, NH3 and CHCl3, identify the molecule (X) with lowest dipole moment value. The number of lone pairs of electrons present on the central atom of the molecule (X) is :

  1. 3
  2. 2
  3. 0
  4. 1
JEE Main 2026 (Online) 22nd January Evening Shift
5

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Statement I is true but Statement II is false
  3. Statement I is false but Statement II is true
  4. Both Statement I and Statement II are false
JEE Main 2026 (Online) 21st January Morning Shift
6

The correct increasing order of C-H(A), C-O(B), C=O(C) and C N(D) bonds in terms of covalent bond length is :

  1. D < C < B < A
  2. D < C < A < B
  3. A < B < C < D
  4. A < D < C < B
JEE Main 2026 (Online) 21st January Evening Shift
7

Match the List I with List II. Choose the correct answer from the options given below:

  1. A-IV, B-III, C-II, D-I
  2. A-III, B-IV, C-I, D-II
  3. A-II, B-I, C-IV, D-III
  4. A-III, B-IV, C-II, D-I
JEE Main 2025 (Online) 7th April Morning Shift
8

In SO2, NO2- and N3-, the hybridizations at the central atom are respectively :

  1. sp2, sp2 and sp2
  2. sp, sp2 and sp
  3. sp2, sp and sp
  4. sp2, sp2 and sp
JEE Main 2025 (Online) 7th April Evening Shift
9

Which of the following molecule(s) show/s paramagnetic behavior? Choose the correct answer from the options given below:

  1. A & C only
  2. A & E Only
  3. A & D Only
  4. B Only
JEE Main 2025 (Online) 4th April Morning Shift
10

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are correct
  2. Both Statement I and Statement II are incorrect
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct
JEE Main 2025 (Online) 4th April Evening Shift
11

Match the LIST-I with LIST-II Choose the correct answer from the options given below:

  1. A-IV, B-I, C-II, D-III
  2. A-III, B-I, C-IV, D-II
  3. A-II, B-III, C-IV, D-I
  4. A-I, B-II, C-III, D-IV
JEE Main 2025 (Online) 3rd April Morning Shift

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