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Question

Copper sulphate solution can be safely kept in a vessel made of :

A
gold
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B
lead
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C
silver
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D
zinc
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Solution

The correct options are
A gold
C silver
The reactivity series follows the order:
Zn>Fe>Pb>H>Cu>Hg>Ag>Au
Thus, silver and gold are less reactive than copper. Hence, they can't displace copper from its solution and can be used to make a vessel to store copper.

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