p-Block Elements (Group 15–18)

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)

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

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

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

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

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)

The strongest reducing agent among the following is :

1. SbH3
2. NH3
3. BiH3
4. PH3

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.

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

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. (A) is false but (R) is true
2. Both (A) and (R) are true and (R) is the correct explanation of (A)
3. Both (A) and (R) are true but (R) is not the correct explanation of (A)
4. (A) is true but (R) is false