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Question

Actinoids are mostly attacked by which acid?

A
Hydrochloric acid
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B
Nitric acid
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C
Sulphuric acid
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D
Boric acid
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Solution

The correct option is A Hydrochloric acid
Actinoids are highly reactive metals especially in the finely divided state. All these metals are attacked by hydrochloric acid but the effect of nitric acid is very small due to the formation of a protective oxide layer on their surface.

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