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p-Block Elements (Group 15–18)

JEE Main 2024 (Online) 1st February Morning ShiftMCQEasy📈 Topic in 27% papers+4−1
Ques. 1JEE 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)

Answer

(3) (A) is correct but (R) is not correct

Solution

N is small and highly electronegative ⇒ NH3 molecules are H-bonded in the liquid

P is larger, less electronegative ⇒ PH3 has only van der Waals forces

⇒ b.p.: NH3 (238.5 K) > PH3 (185.5 K) ⇒ A is correct

R states the forces the other way round ⇒ R is not correct

Answer: (3)

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

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

The strongest reducing agent among the following is :

  1. SbH3
  2. NH3
  3. BiH3
  4. PH3
Ques. 3JEE 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. 4JEE 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. 5JEE 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. 6JEE 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. 7JEE 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. 8JEE 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. 9JEE Main 2024, 27 January (Morning Shift)

Element not showing variable oxidation state is :

  1. Bromine
  2. Iodine
  3. Chlorine
  4. Fluorine
Ques. 10JEE 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
Ques. 11JEE Main 2024, 27 January (Evening Shift)

1 mole of PbS is oxidised by "X" moles of O3 to get "Y" moles of O2. X + Y = .

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