`VO_(2)` is an amphoteric oxide and in acidic medium it form:

SnO_(2) is an amphoteric oxide, explain.

SnO_(2) is an amphoteric oxide, explain.

The amphoteric oxide is :

Explain why Cr_(2)O_(7)^(2-) ion is a powerful oxidant in acidic medium but weak oxidant in basic medium ?

A metal which forms an amphoteric oxide.

A metal which forms an amphoteric oxide.