Question

Reason
Both have same valence electrons.
Assertion
$$S_2O^{2-}_7$$ & $$Cr_2O^{2-}_7$$ both exist.
$$S_2O^{2-}_7$$ & $$Cr_2O^{2-}_7$$ both exist.

Answer 1

Correct option is A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Solution:- (A) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Both $${{S}_{2}{O}_{7}}^{-2}$$ and $${{Cr}_{2}{O}_{7}}^{2-}$$ have same structure and same no. of valance electrons.

Hence both Assertion and Reason are correct and Reason is the correct explanation for Assertion