Question:
A metal ‘M’, which is used in thermite process, when heated with oxygen gives an oxide, which is amphoteric in nature. Identify ‘M’ and its oxide. Write
down the reactions of oxide with HCl and NaOH.
Solution:
The information suggests that the metal ‘M’ is aluminium (Al). The formula of its oxide is Al2O3 which is amphoteric in nature. It reacts with both acid
and base.
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