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p-Block Elements (Group 15–18) · Question 1

JEE Main 2026 (Online) 8th April Evening ShiftMCQEasy📈 Topic in 29% papers+4−1
1

Find the correct statements related to group 15 hydrides. Choose the correct answer from the options given below :

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

Answer

(3) A, B, C and D

Solution

Down group 15 (N → Bi) the size of E increases ⇒ the E–H bond becomes longer and weaker.

A. Weaker E–H bond releases H more easily ⇒ reducing character increases from NH3 to BiH3 ⇒ correct.

B. The lone pair on a larger atom is spread over a bigger volume (lower electron density) ⇒ basicity (lone-pair donation) decreases: NH3 > PH3 > AsH3 > SbH3 BiH3 ⇒ correct.

C. E–H bond dissociation enthalpy decreases ⇒ thermal stability decreases from NH3 to BiH3 ⇒ correct.

D. Electronegativity of E decreases ⇒ bond pairs lie farther from E ⇒ less bond pair–bond pair repulsion ⇒ HEH angle: NH3 (107.8°) > PH3 (93.6°) > AsH3 (91.8°) > SbH3 (91.3°) ⇒ correct.

∴ A, B, C and D are all correct.

Answer: (3)

JEE Main 2026 (Online) 8th April Evening Shift

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

2

Correct statements from the following are: Choose the correct answer from the options given below:

  1. B, C and D Only
  2. C, D and E Only
  3. A, C and E Only
  4. A and E Only
JEE Main 2026 (Online) 5th April Morning Shift
3

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) 4th April Morning Shift
4

Regarding the hydrides of group 15 elements EH3 (E = N, P, As, Sb), select the correct statement from the following : Choose the correct answer from the options given below :

  1. A, B & C only
  2. A, B, C & D
  3. A & D only
  4. B & C only
JEE Main 2026 (Online) 28th January Morning Shift
5

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 false
  3. Statement I is true but Statement II is false
  4. Both Statement I and Statement II are true
JEE Main 2026 (Online) 28th January Evening Shift
6

One mole of Cl2(g) was passed into 2 L of cold 2 M KOH solution. After the reaction, the concentrations of Cl-, ClO- and OH- are respectively (assume volume remains constant)

  1. 0.5 M, 0.5 M, 0.5 M
  2. 1 M, 1 M, 1 M
  3. 0.5 M, 0.5 M, 1 M
  4. 0.75 M, 0.75 M, 1 M
JEE Main 2026 (Online) 24th January Evening Shift
7

Elements X and Y belong to Group 15. The difference between the electronegativity values of 'X' and phosphorus is higher than that of the difference between phosphorus and 'Y'. 'X' & 'Y' are respectively

  1. As & Bi
  2. Bi & N
  3. N & As
  4. As & Sb
JEE Main 2026 (Online) 23rd January Evening Shift
8

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 true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
JEE Main 2026 (Online) 22nd January Morning Shift
9

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. Statement I is true but Statement II is false
  3. Both Statement I and Statement II are false
  4. Both Statement I and Statement II are true
JEE Main 2026 (Online) 22nd January Evening Shift
10

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
JEE Main 2026 (Online) 21st January Evening Shift
11

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

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