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Question

Which of the following metals, on reaction with acids like HCl form bubbles in the solution?



A

Silver (Ag)

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B

Platinum (Pt)

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C

Aluminium (Al)

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D

Gold (Au)

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Solution

The correct option is C

Aluminium (Al)


Aluminium reacts with dilute hydrochloric acid to form aluminium chloride and hydrogen gas.

2Al + 6HCl  2AlCl3 + 3H2

Gold (Au), Silver (Ag) and Platinum (Pt) are the least reactive metals which do not react with hydrochloric acid.


Chemistry

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