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Assertion: Removal of s electrons is rel...

Assertion: Removal of s electrons is relatively difficult than removal of p-electron of same main shell.
Reason: s electrons are closer to the nucleus than p electrons of the same shell and hence are more strongly attracted by the nucleus.

A

Both A and B true and R is the correct explanation A

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that the removal of s electrons is relatively difficult compared to the removal of p electrons of the same main shell. - **Explanation**: In general, electrons in the s subshell are more tightly bound to the nucleus than those in the p subshell. This is due to the shape and distribution of the electron clouds in these orbitals. ### Step 2: Understand the Reason The reason provided states that s electrons are closer to the nucleus than p electrons of the same shell, and therefore, they are more strongly attracted by the nucleus. - **Explanation**: The s orbital is spherical and has a higher probability density near the nucleus compared to the p orbital, which has a dumbbell shape and extends further away from the nucleus. This means that s electrons experience a stronger electrostatic attraction to the positively charged nucleus. ### Step 3: Analyze the Relationship Now, we need to determine if the reason correctly explains the assertion. - Since s electrons are indeed closer to the nucleus and more strongly attracted to it, it follows that they would require more energy to remove compared to p electrons. ### Conclusion Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the answer is: **Both the assertion and the reason are true, and the reason is the correct explanation for the assertion.** ### Final Answer The correct option is A: Both assertion and reason are true, and the reason is the correct explanation for the assertion. ---
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