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p-Block Elements (Group 15–18) · Question 10

JEE Main 2026 (Online) 21st January Evening ShiftMCQMedium📈 Topic in 13% 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 false but Statement II is true
  4. Statement I is true but Statement II is false

Answer

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

Solution

Statement I: Bond dissociation enthalpy ( kJ mol-1): Cl2 242.6, Br2 192.8, F2 158.8, I2 151.1

F2 has an unusually low value due to large repulsion between the lone pairs of the small F atoms.

Cl2 > Br2 > F2 > I2. Statement I is true.

Statement II: A metal ion in a higher oxidation state has greater polarising power, so its halide is more covalent.

As per NCERT, SnCl4, PbCl4 and UF6 are more covalent than SnCl2, PbCl2 and UF4.

The trend UF4 > UF6 is wrong. Statement II is false.

Answer: (4)

JEE Main 2026 (Online) 21st January Evening Shift

Keep practising — p-Block Elements (Group 15–18)

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. Statement I is true but Statement II is false
  3. Both Statement I and Statement II are false
  4. Statement I is false but Statement II is true
JEE Main 2025 (Online) 8th April Evening Shift
3

Given below are two statements: In the light of given 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 2025 (Online) 4th April Morning Shift
4

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

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are true
  3. Both Statement I and Statement II are false
  4. Statement I is true but Statement II is false
JEE Main 2025 (Online) 3rd April Morning Shift
5

The property/properties that show irregularity in first four elements of group-17 is/are Choose the correct answer from the options given below :

  1. A, B, C and D
  2. A and C only
  3. B only
  4. B and D only
JEE Main 2025 (Online) 2nd April Morning Shift
6

The nature of oxide (TeO2) and hydride (TeH2) formed by Te, respectively are:

  1. Reducing and basic
  2. Reducing and acidic
  3. Oxidising and acidic
  4. Oxidising and basic
JEE Main 2025 (Online) 2nd April Evening Shift
7

A group 15 element forms d - d bond with transition metals. It also forms a hydride, which is the strongest base among the hydrides of other group members that form d - d bond. The atomic number of the element is .

JEE Main 2025 (Online) 28th January Evening Shift

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