A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature? Identify A and B. Write down the reactions of oxide B with HCl and NaOH.

Metals and Non-metals

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05/11/2020 6:12 pm

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romiroy12

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A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature? Identify A and B. Write down the reactions of oxide B with HCl and NaOH.

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05/11/2020 6:15 pm

Anonymous

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‘A’ is aluminium.

4Al(s) + 3O₂(g) + heat → 2Al₂O₃(s)

'B' is Al₂O₃, amphoteric in nature.

Al₂O₃+ 6HCl → 2AlCl₃ + 3H₂O

Al₂O₃+ 2NaOH → 2NaAlO₂ + H₂O

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A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature? Identify A and B. Write down the reactions of oxide B with HCl and NaOH.

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