The metals which can produce amphoteric oxides are:
(a) Sodium and aluminium (b) zinc and potassium (c) calcium and sodium (d) aluminium and zinc

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Solution

Answer :

(d) aluminium and zinc
Both aluminium and zinc oxides react with acids and bases to form salt and water.

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The figure represents the reactivity of metals then which of the following are correct?

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(ii) Magnesium ad aluminium metals displace lead.

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(v) Most reactive metal is sodium.

(vi) Gold is least reactive.

(vii) Calcium and zinc metals displace iron.

X + O_{2} \to Amphoteric Oxide

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The metals which can produce amphoteric oxides are: (a) Sodium and aluminium (b) zinc and potassium (c) calcium and sodium (d) aluminium and zinc

Answer : (d) aluminium and zinc Both aluminium and zinc oxides react with acids and bases to form salt and water.

The metals which can produce amphoteric oxides are:
(a) Sodium and aluminium (b) zinc and potassium (c) calcium and sodium (d) aluminium and zinc

Answer :

(d) aluminium and zinc
Both aluminium and zinc oxides react with acids and bases to form salt and water.