1.

Assertion (A): The highest oxidation state of osmium is (+8). Reason (R ): Osmium is a 5d-block elements

Answer»

Both ASSERTION and reason are true and reason is the correct explanation of the assertion
Both assertion and reason are true, but reason is not correct explanation of the assertion
Assertion is not true reason is true
Both assertion and reason are false

Solution :(+8) oxidation state of osmiumis due to its ABILITY to use all its EIGHT electrons.


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