In this type of questions, a statement of assertion is fol…

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Assertion Reason Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

In this type of questions, a statement of assertion is followed by a statement of reason

. Mark the correct choice as :

Assertion : Al forms but B does not form .
Reason : B does not react with fluorine.

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct answer is:

B does not have vacant -orbitals (sub-shell) in its valence shell. Boron reacts with to form boron trifluorides.

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