When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved. Write the chemical equation of the reaction involved and also write a test to detect the gas formed.

Open in App

Solution

When zinc reacts with dilute hydrochloric acid, it results in the formation of zinc chloride and hydrogen gas is released.

The chemical equation for this reaction is:
$Zn (s) + 2 HCl (aq) \to {ZnCl}_{2} (aq) + H_{2} (g)$
Presence of hydrogen gas can be confirmed by bringing a burning candle near the mouth of the test tube from which the gas is evolved. A pop sound is produced if hydrogen gas is released.

Suggest Corrections

Similar questions

Q. Question 38
A gas is evolved when ethanol reacts with sodium. Name the gas evolved and also write the balanced chemical equation of the reaction involved.

Question 47
A salt X is formed and gas is evolved when ethanoic acid reacts with sodium hydrogen carbonate. Name the salt X and the gas evolved. Describe an activity and draw the diagram of the apparatus to prove that the evolved gas is one which you have named. Also, write chemical equation of the reaction involved.

Q. When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved.

2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid .

Which gas is evolved when sodium hydrogen carbonate reacts with dilute hydrochloric acid. Write the chemical equation of the reaction involved.

Join BYJU'S Learning Program