Question

3. Name four metals which react with caustic soda or caustic potash solution on boiling and liberate hydrogen gas. Suppport your answer by writing a fully balanced equation for any one of the above named metals.
4. Name two metals which react with dilute sulphuric acid or dilute hydrochloric acid to liberate hydrogen gas. Support your answer by writing fully balanced equations of any one of the named metal with (a) dilute sulphuric acid
(b) dilute hydrochloric acid.
5. Briefly describe an experiment to prove that water contains two volumes of hydrogen and one
volume of oxygen.
6. (a) By drawing neat diagram explain how hydrogen gas is collected in laboratory.
(b) What is importance of copper sulphate solution in above reaction?​

Answer 1

Name four metals which react with caustic soda or caustic potash solution on boiling and liberate hydrogen gas. Suppport your answer by writing a fully balanced equation for any one of the above named metals.

4. Name two metals which react with dilute sulphuric acid or dilute hydrochloric acid to liberate hydrogen gas. Support your answer by writing fully balanced equations of any one of the named metal with (a) dilute sulphuric acid

(b) dilute hydrochloric acid.

5. Briefly describe an experiment to prove that water contains two volumes of hydrogen and one

volume of oxygen.

6. (a) By drawing neat diagram explain how hydrogen gas is collected in laboratory.

(b) What is importance of copper sulphate solution in above