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 $Mg^{2+}$ from Mg is much higher than that required to produce $Mg^+$ Reason R: $Mg^{2+}$ 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.

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 $Mg^{2+}$  from Mg is much higher than that required to produce  $Mg^+$ Reason R:  $Mg^{2+}$  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.

cdquestions Admin · Accepted Answer

Step 1: Understanding Assertion A The formation of $ \text{Mg}^{2+} $ requires the removal of two electrons, whereas the formation of $ \text{Mg}^+ $ involves the removal of only one electron. Since removing more electrons requires more energy, the energy needed to form $ \text{Mg}^{2+} $ is significantly higher than that required for $ \text{Mg}^+ $. Step 2: Understanding Reason R Reason R is correct because the smaller size of $ \text{Mg}^{2+} $ results in a higher charge density, which makes it more stable but also harder to form compared to $ \text{Mg}^+ $. Therefore, both Assertion A and Reason R are true, and Reason R provides the correct explanation for Assertion A.

Answer

A is true but R is false

Answer

A is false but R is true

Answer

Both A and R are true and R is the correct explanation of A

Answer

Both A and R are true but R is NOT the correct explanation of A

The Correct Option is C

Solution and Explanation

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