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Assertion: The most common oxidation state exhibited by actinoids is +2. Reason: All actinoids possess two electrons in 7s subshell. - Chemistry (Theory)

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Question

Assertion: The most common oxidation state exhibited by actinoids is +2.

Reason: All actinoids possess two electrons in 7s subshell.

Options

  • If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

  • If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

  • If Assertion is CORRECT but Reason is INCORRECT.

  • If Assertion is INCORRECT but Reason is CORRECT.

MCQ
Assertion and Reasoning
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Solution

If Assertion is INCORRECT but Reason is CORRECT.

Explanation:

The Assertion is incorrect because the most common oxidation state of actinoids is +3, not +2. The Reason is correct, as all actinoids do possess two electrons in the 7s subshell, but this does not make +2 the most common oxidation state.

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Chapter 8: d-and ƒ-Block Elements - ASSERTION-REASON TYPE QUESTIONS [Page 505]

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Nootan Chemistry Part 1 and 2 [English] Class 12 ISC
Chapter 8 d-and ƒ-Block Elements
ASSERTION-REASON TYPE QUESTIONS | Q 5. | Page 505
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