Reactions with Other Compounds

Q. Given below is the chemical equation for the reaction between lead sulphide and hydrogen peroxide.
$PbS+2H_2{O}_2\to PbS{O}_4+4H_{2}O$
Identify the correct statement regarding the given reaction.

1. Lead sulphate is oxidised and water is reduced.
2. Lead sulphide is reduced and hydrogen peroxide is oxidised.
3. Lead sulphate is reduced and water is oxidised
4. Lead sulphide is oxidised and hydrogen peroxide is reduced.

Q.

Which among the below mentioned is used to remove the impurity hydrogen sulphide from hydrogen gas:-

1. Silver nitrate

2. Potassium hydroxide

3. Lead nitrate

4. Calcium chloride

Q.

Which of the following is a suitable drying agent for hydrogen?

1. Both of the above

2. None of the above

3. $H_{2}S{O}_4$

4. $CaC{l}_2$