Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The energy required to form Mg2+ from Mg is much higher than that required to produce

Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The energy required to form Mg2+ from Mg is much higher than that required to produce Mg+ Reason R: Mg2+ is small ion and carry more charge than Mg+ In the light of the above statements, choose the correct answer from the options given below.

(A) A is true but R is false
(B) A is false but R is true
(C) Both A and R are true and R is the correct explanation of A
(D) Both A and R are true but R is NOT the correct explanation of A

Prashant Kotian · Accepted Answer

Correct answer: C. Mg   1 IE Mg+ Mg   1 IE Mg+    IE Mg+2 The second ionization enthalpy will be higher than that of first ionization enthalpy. Due to it's small size, it has more effective nuclear charge JEE (Main) 2023 | DATE: 10-04-2023 (SHIFT-2) | OFFICIAL PAPER | PAPER-1 | CHEMISTRY PAGE # 6

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