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 ionization 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:
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 ionization 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:
Option 1 -
(A) is false but (R) is true.
Option 2 -
Both (A) and (R) are correct and (R) is the correct explanation of (A)
Option 3 -
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
Option 4 -
(A) is true but (R) is false
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1 Answer
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Correct Option - 4
Detailed Solution:Assertion (A) is correct & Reason (R) is incorrect
→character decreases from left to right & non metallic character increases from left to night
→I.E. increases & electron gain enthalpy also increases from left to right.
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