Question

The metal which does not displace Hydrogen from a dilute acid is( )
a) Sodium
b) Copper
c) Zinc
d) Iron


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Answer 1

Answer:

Electrolysis refers to the decomposition of a substance by an electric current. Example: When the current is passed through the molten sodium chloride, sodium and chlorine are deposited at different electrodes. Thus, sodium chloride is decomposed into sodium and chlorine.

Explanation:

Iron

Answer 2

Answer:

b) Copper

Explanation:

Copper cannot displace hydrogen from dilute acid as they are less reactive than hydrogen.