Multiple choice

Directions: In the following question, there are two statements, Assertion A and Reason R. Consider both the statements independently and mark your answer.

Assertion A: Elements of Group 16 generally show lower value of first ionization enthalpy as compared to the corresponding periods of Group 15. Reason R: Due to extra stable half-filled p orbital electronic configurations of Group 15 elements, larger amount of energy is required to remove electrons as compared to Group 16 elements.

  1. A and R both are correct and R is the correct explanation of A.

  2. A and R both are correct and R is not the correct explanation of A.

  3. A is correct and R is incorrect.

  4. A is incorrect and R is correct.

  5. A and R both are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A and R both are correct and R is the correct explanation of A. Elements of Group 16 generally show lower value of first ionization enthalpy as compared to the corresponding periods of group 15. Due to extra stable half-filled p orbitals electronic configurations of Group 15 elements, larger amount of energy is required to remove electrons as compared to Group 16 elements.

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