. 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 HCland NaOH.

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Solution

Aluminium (Al) is used in thermite process. Its oxide is Al₂O₃.
So A = Al
B = Al₂O₃

Reaction of Al₂O₃ with HCl and NaOH:
Al₂O₃ + 6HCl = 3H₂O + 2AlCl₃

Al₂O₃ + 6NaOH + 3H₂O = 2Na₃(AlOH)₆

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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 HCland NaOH.

Aluminium (Al) is used in thermite process. Its oxide is Al2O3. So A = Al B = Al2O3 Reaction of Al2O3 with HCl and NaOH: Al2O3 + 6HCl = 3H2O + 2AlCl3 Al2O3 + 6NaOH + 3H2O = 2Na3(AlOH)6

. 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 HCland NaOH.

Aluminium (Al) is used in thermite process. Its oxide is Al₂O₃.
So A = Al
B = Al₂O₃

Reaction of Al₂O₃ with HCl and NaOH:
Al₂O₃ + 6HCl = 3H₂O + 2AlCl₃

Al₂O₃ + 6NaOH + 3H₂O = 2Na₃(AlOH)₆