Q8 / 57 · JEE Advanced 2010 (Paper 2) · Chemistry

Among the following, the number of elements showing only one non-zero oxidation state is O, Cl, F, N, P, Sn, Tl, $\mathrm{Na}, \mathrm{Ti}$

Correct answer: 8

Solution

F is the most electronegative element which cannot loose electron to other so only $-1$ Na is alkali metal which can loose only one electron so $+1$ Basics of general chemistry Basic understanding I

Hence, the correct answer is 8.

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