1.

Assertion (A) : The elements which give the greatest number of oxidation states occur in or near the middle of the series. Reason (R) : The lowest common oxidation state of transition elements is +2.

Answer»

Both Assertion (A) and REASON (R) are correct statements, and Reason (R) is the correct EXPLANATION of the Assertion (A).
Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is correct, but Reason (R) is incorrect STATEMENT.
Assertion (A) is incorrect, but Reason (R) is correct statement.

ANSWER :B


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