1.

Assertion : PH_(5) is not possible. Reason : -5 oxidation state of phosphorusis not possible.

Answer»

Both assertion and REASON are TRUE and reason is the correct explanation of the assertion
Both assertion and reason are true and reason is not the correct explanation of the assertion.
Assertion is true but reason is false
Both assertion and reason are false.

Answer :A::B::C::D


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