Single Choice

$$V_2O_5$$ reacts with alkalies as well as acids to give:

A$$VO_4^{3-}$$ and $$VO^{2+}$$
Correct Answer
B$$VO^{2+}$$ and $$VO_4^{+}$$
C$$VO_2^{+}$$ and $$VO^{2+}$$
D$$VO_4^{3-}$$ and $$VO_4^{+}$$

Solution

$$V_{2}O_{5}$$ is, amphoteric in nature. But mainly it is acidic. Still, it gives $$vVO_{4}^{3-}$$ as well as $$VO^{2+}$$ salts. In vanadium, there will be a gradual change from the basic $$V_{2} O_{3}$$ to less basic $$V_{2} O_{4}$$ and to the amphoteric $$V_{2} O_{5}$$. $$V_{2} O_{4}$$ dissolves in acids to give $$VO^{2+}$$ salts. Similarly, $$V_{2} O_{5} $$ reacts with alkalies as well as acids to give $$VO_{4}^{3-} $$ and $$VO^{2+}$$respectively.

The correct option is A.

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