Question

When dilute hydrochloric acid is added to iron fillings-

• A. hydrogen gas and ferric chloride are produced.
• B. chlorine gas and ferric hydroxide are produced.
• C. no reaction takes place
• D. iron salt and water are produced.

Answer 1

The correct option is A

hydrogen gas and ferric chloride are produced.

Displacement reaction:

In displacement reaction, the metal which is more reactive displaces the other metal and form new products.

When dilute hydrochloric acid is added to iron fillings- then the given reaction takes place:

$\mathrm{Fe}\left(\mathrm{s}\right)+2\mathrm{HCl}\left(\mathrm{aq}\right)\to {\mathrm{FeCl}}_2\left(\mathrm{aq}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)$

As a result, ferrous chloride and hydrogen gas are produced.

Option b) is incorrect because the given products are not formed.

Option c) is incorrect, as the reaction is taking place.

Option d) is incorrect because no water is produced.

Hence, option a) Hydrogen gas and Ferric chloride are produced, is the correct one.