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): Halogens have the maximum negative electron gain enthalpy in their respective periods in the periodic table. Reason (R): Halogens have the largest size in their respective periods and therefore, the highest effective nuclear charge.

  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
C Correct answer
Explanation

Halogens have the maximum negative electron gain enthalpy in their respective periods in the periodic table. They have the smallest size in their respective periods and therefore, the highest effective nuclear charge. As a consequence, they readily accept one electron to acquire noble gas electronic configuration.

Keep practicing — related questions