In a reaction between a metal and an acid- why are bubbles formed-Formation of O-2 gasFormation of H-2 gasFormation of metal saltNone of the above

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Reaction of Metals with Acid

In a reaction...

Question

In a reaction between a metal and an acid, why are bubbles formed?

Formation of

H_{2}

gas

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Formation of

O_{2}

gas

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Formation of metal salt

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None of the above

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Question 31
During the reaction of some metals with dilute hydrochloric acid, following observations were made.

(a) Silver metal does not show any change.

(b) The temperature of the reaction mixture rises when aluminium (Al) is added.

(d) Some bubbles of a gas are seen when lead (Pb) is reacted with the acid.

Explain these observations giving suitable reasons.

In a reaction between a metal and an acid, why are bubbles formed?

Since the products of reactions of acid + base and acid + metal oxide are same. Why acid + metal oxide reaction is not neutralization reaction?

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