1.

Assertion: EA_1 of fluorine is less than that of chlorine. Reason: Additional electrons are repelled more effectively by 3p electrons in Cl atoms than by 2p electrons in F atom than Cl.

Answer»

Both A and B true and R is the CORRECT explanation A
Both A and R are true but R is not a correct explanation of A
A is true but R is FALSE
A is false but R is true

Answer :C


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