Question

some metals are given
zinc,iron,magnesium ,copper
which gas is evolved when metals react with dilute hydrochloric acid​

Answer 1

Answer:

hydrogen gas

Explanation:

metal + acid = metal salt + hydrogen gas

Answer 2

Answer:

Zn + 2HCl --> ZnCl2 + H2

Hydrogen gas will be evolved

Fe + 2HCl --> FeCl2 + H2

Hydrogen gas will be evolved

Mg + 2HCl --> MgCl2 + H2

Hydrogen gas will be evolved

Cu + 2HCl --> No reaction

As copper is below hydrogen in the activity series

It will not be able to displace hydrogen from its compound

Explanation:

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