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JEE Main Chemistry Class 11 Classification of Elements and Periodicity in Properties 1 Questions

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Question : 32

Total: 100

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.

[31 Aug 2021 Shift 1]

(A) is false but (R) is true.
(A) is true but (R) is false
Both (A) and (R) are correct and (R) is the correct explanation of (A).
Both (A) and (R) are correct but (R) is not the correct explanation of (A).

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