Verified Solution • 2025–26 Session
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QJEEM21Ch87bb: JEE Main 2021 Chemistry - Class 11 JEEM21Ch87bb Solution: Given below are two statements : one is labelled as Assertion…
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) : It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion (A) : Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) : It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below :
Multiple Choice Options
- A (A) is false but (R) is true.
- B (A) is true but (R) is false
- C Both (A) and (R) are correct and (R) is the correct explanation of (A)
- D Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Step-by-Step Verified Solution
From left to right in periodic table :-
Metallic character decreases
Non-metallic character increases
It is due to increase in ionization enthalpy and increase in electron gain enthalpy.
Metallic character decreases
Non-metallic character increases
It is due to increase in ionization enthalpy and increase in electron gain enthalpy.