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p-Block Elements (Group 15–18)

JEE Main 2025 (Online) 23rd January Morning ShiftMCQEasy📈 Topic in 19% papers+4−1
Ques. 1JEE Main 2025, 23 January (Morning Shift)

The incorrect statement among the following is

  1. PH3 shows lower proton affinity than NH3.
  2. SO2 can act as an oxidizing agent, but not as a reducing agent.
  3. NO2 can dimerise easily.
  4. PF3 exists but NF5 does not.

Answer

(2) SO2 can act as an oxidizing agent, but not as a reducing agent.

Solution

Concept: check each statement.

(1) lone pair of P in PH3 is diffuse (weaker base) ⇒ (1) is correct

(2) S in SO2 is +4 (intermediate) ⇒ it is also a reducing agent:

5SO2 + 2MnO4- + 2H2O 5SO42- + 2Mn2+ + 4H+ ⇒ (2) is incorrect

(3) 2NO2 N2O4 (odd electron) ⇒ (3) is correct

(4) N has no d orbitals, max covalency 4 ⇒ (4) is correct

Answer: (2)

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

Ques. 2JEE Main 2025, 22 January (Evening Shift)

The maximum covalency of a non-metallic group 15 element ' E ' with weakest E-E bond is :

  1. 5
  2. 3
  3. 4
  4. 6
Ques. 3JEE Main 2024, 9 April (Morning Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  2. (A) is correct but (R) is not correct
  3. (A) is not correct but (R) is correct
  4. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Ques. 4JEE Main 2024, 9 April (Morning Shift)

On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed?

  1. Sulphur
  2. Nitric oxide
  3. Lead nitrate
  4. Nitrous oxide
Ques. 5JEE Main 2024, 9 April (Evening Shift)

Number of oxygen atoms present in chemical formula of fuming sulphuric acid is .

Ques. 6JEE Main 2024, 8 April (Morning Shift)

Among the following halogens F2, Cl2, Br2 and I2 Which can undergo disproportionation reactions?

  1. F2 and Cl2
  2. Cl2, Br2 and I2
  3. Only I2
  4. F2, Cl2 and Br2
Ques. 7JEE Main 2024, 8 April (Evening Shift)

Identify the incorrect statements about group 15 elements : Choose the correct answer from the options given below :

  1. (A), (C), (E) only
  2. (D) and (E) only
  3. (A), (B), (D) only
  4. (B), (D), (E) only
Ques. 8JEE Main 2024, 1 February (Morning Shift)

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both (A) and (R) are correct and (R) is the correct explanation of (A)
  2. (A) is not correct but (R) is correct
  3. (A) is correct but (R) is not correct
  4. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Ques. 9JEE Main 2024, 1 February (Evening Shift)

The strongest reducing agent among the following is :

  1. SbH3
  2. NH3
  3. BiH3
  4. PH3
Ques. 10JEE Main 2024, 31 January (Morning Shift)

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.
Ques. 11JEE Main 2024, 31 January (Evening Shift)

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

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

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