Question

Assertion : The highest oxidation state of osmium is +8
Reason : Osmium is a 5d-block element
i) Both assertion and reason are true, and reason is the correct explanation of the assertion.
ii) Both assertion and reason are true but reason is not the correct explanation of assertion.
111) Assertion is not true but reason is true.
iv) Both assertion and reason are false​

Answer 1

Answer:

Correct answer is option a