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Question:
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 $Be ^{2+}$ but relatively large value of atomization enthalpy
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: 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 $Be ^{2+}$ but relatively large value of atomization enthalpy
In the light of the above statements, choose the most appropriate answer from the options given below
Updated On: Oct 1, 2024
- Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$
- $A$ is not correct but $R$ is correct
- Both $A$ and $R$ are correct but $R$ is NOT the correct explanation of $A$
- $A$ is correct but $R$ is not correct
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The Correct Option is A
Solution and Explanation
The correct answer is (A) : Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$
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 Be2+ ion and relatively large value of the atomization enthalpy of metal.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family
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