JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Beryllium has less negative value of reduction potential compared to the other alkaline earth metals
Reason R : Beryllium has large hydration energy due to small size of but relatively large value of atomisation enthalpy.
In the light of the above statements, choose the most appropriate answer from the options given below.
- A A is correct but R is not correct
- B Both A and R are correct and R is the correct explanation of A
- C A is not correct but R is correct
- D Both A and R are correct and R is NOT the correct explanation of A
Answer & Solution
Correct Answer
(B) Both A and R are correct and R is the correct explanation of A
Step-by-step Solution
Detailed explanation
Be has less negative value compared to other AEM. However it's reducing nature is due to large hydration energy associated with the small size of \(Be ^{2+}\) ion and relatively large value of the atomization enthalpy of metal.
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