Q.

Which does not react with dilute hydrochloric acid?

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a

Copper

b

Both B and C

c

Iron

d

Zinc

answer is A.

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Detailed Solution

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  • As copper is present below hydrogen in the activity series, it is less reactive and does not react with diluted hydrochloric acid.
  • Metals that are present below hydrogen in the reactivity series cannot displace hydrogen easily from the acids, hence do not usually react with acids.
  • As Zn and Fe.
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Which does not react with dilute hydrochloric acid?