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Chemical Bonding and Molecular Structure · Question 3

JEE Main 2026 (Online) 6th April Evening ShiftMCQMedium📈 Topic in 10% papers+4−1
1

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. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true

Answer

(4) Statement I is false but Statement II is true

Solution

Statement I: electrons around S in the Lewis structures

SO2 (O=S=O, one lone pair): 10 electrons

SO3 (three S=O): 12 electrons

SF4 (4 bp + 1 lp): 10 electrons

SF6 (6 bp): 12 electrons

H2S (2 bp + 2 lp): 8 electrons (octet obeyed)

⇒ S does not obey the octet rule in 4 compounds, not 3 ⇒ Statement I is false.

Statement II: lone pairs on the central atom

H2O 2, ClF3 2, SF4 1, NH3 1, BrF5 1, XeF4 2

[H2O, ClF3, SF4] ✗; [NH3, BrF5, SF4] ✓; [BrF5, ClF3, XeF4] ✗; [XeF4, ClF3, H2O] ✗

⇒ Only 1 set ⇒ Statement II is true.

Answer: (4)

JEE Main 2026 (Online) 6th April Evening Shift

Keep practising — Chemical Bonding and Molecular Structure

2

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. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
JEE Main 2026 (Online) 6th April Evening Shift
3

Consider the following species: BrF5, XeF5-, BF4-, ICl4-, XeF4, SF4, NH4+, ClF3, XeF2, ICl2- Number of species having sp3d hybridized central atom is .

JEE Main 2026 (Online) 5th April Morning Shift
4

The covalent radii of atoms A and B are rA and rB, respectively. The covalent bond length and total length of AB molecule are respectively

  1. (rA + rB), 2(rA + rB)
  2. 12(rA + rB), (rA + rB)
  3. (rA + rB), (rA + rB)
  4. 2(rA + rB), 12(rA + rB)
JEE Main 2026 (Online) 5th April Evening Shift
5

According to Lewis theory, the total number of bond-pairs and lone pair of electrons around the central atom of XeO64- ion is .

JEE Main 2026 (Online) 4th April Morning Shift
6

Which of the following pictorial diagrams most correctly represents the * ( antibonding) molecular orbital between two atoms if the internuclear axis is taken to be in the z-direction ( z-axis) ?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
JEE Main 2026 (Online) 4th April Evening Shift
7

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. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
JEE Main 2026 (Online) 2nd April Morning Shift
8

SF4 is isostructural with : Choose the correct answer from the options given below :

  1. C Only
  2. C and E Only
  3. A and D Only
  4. B and E Only
JEE Main 2026 (Online) 2nd April Evening Shift
9

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 false
  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 true
JEE Main 2026 (Online) 28th January Morning Shift
10

Match List-I with List-II according to shape. Choose the correct answer from the options given below :

  1. A-II, B-III, C-I, D-IV
  2. A-III, B-II, C-IV, D-I
  3. A-II, B-III, C-IV, D-I
  4. A-II, B-I, C-III, D-IV
JEE Main 2026 (Online) 28th January Evening Shift
11

Given below are statements about some molecules/ions. Identify the CORRECT statements. Choose the correct answer from the options given below:

  1. B & C Only
  2. B, C & D Only
  3. A, C & D Only
  4. A, B, C, D & E
JEE Main 2026 (Online) 24th January Morning Shift

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