Question

Both A and Rare true and R is not correct explanation of A
Assertion (A):d-block elements exhibits only one oxidation state in their compounds.
Reason (R): The common oxidation state of d block elements is +II
Reason(R):d-block elements show the common oxidation state of +II due to the loss of ns?
Assertion (A):d-block elements exhibits more than one oxidation states.
Assertion and Reason type:
Both A and R are true and R is the correct explanation of A
d) A is incorrect and R is correct.
A is correct and R is incorrect
please answer fast ​

Answer 1

Answer:

Answer is the D. this is the