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p-Block Elements (Group 15–18)

JEE Main 2024 (Online) 8th April Evening ShiftMCQEasy📈 Topic in 28% papers+4−1
Ques. 1JEE 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

Answer

(2) (D) and (E) only

Solution

(A): the N≡N bond enthalpy is very high (941.4 kJ mol-1), so N2 is inert at room temperature; (A) is correct.

(B): with ns2np3 the common oxidation states are −3, +3 and +5; (B) is correct.

(C): small size and high electronegativity let N form p - p bonds (N≡N); (C) is correct.

(D): due to the inert pair effect the +5 state becomes less stable down the group ( Bi5+ is a strong oxidant); (D) is incorrect.

(E): N has no d orbitals, so its maximum covalency is 4 (as in NH4+); (E) is incorrect.

Hence the incorrect statements are (D) and (E).

Answer: (2)

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

Ques. 2JEE 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. 3JEE Main 2024, 1 February (Evening Shift)

The strongest reducing agent among the following is :

  1. SbH3
  2. NH3
  3. BiH3
  4. PH3
Ques. 4JEE 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. 5JEE 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
Ques. 6JEE Main 2024, 30 January (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. (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
Ques. 7JEE Main 2024, 30 January (Evening Shift)

Choose the correct statements about the hydrides of group 15 elements. Choose the most appropriate from the options given below :

  1. C and D only
  2. A and D only
  3. A and B only
  4. B and C only
Ques. 8JEE Main 2024, 30 January (Evening 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 from the options given below:

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is NOT the correct explanation of A.
  3. A is false but R is true.
  4. A is true but R is false.
Ques. 9JEE Main 2024, 29 January (Evening Shift)

Anomalous behavior of oxygen is due to its

  1. large size and low electronegativity
  2. small size and high electronegativity
  3. small size and low electronegativity
  4. large size and high electronegativity
Ques. 10JEE Main 2024, 27 January (Morning Shift)

Element not showing variable oxidation state is :

  1. Bromine
  2. Iodine
  3. Chlorine
  4. Fluorine
Ques. 11JEE Main 2024, 27 January (Evening Shift)

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

  1. Statement I is correct but Statement II is incorrect
  2. Both Statement I and Statement II are incorrect
  3. Statement I is incorrect but Statement II is correct
  4. Both Statement I and Statement II are correct

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