Question

1(a) Which gas is usually released when an acid reacts with a metal. Write a chemical reaction.

(b) How will you test the gas when acids react with metals? Explain the activity with the help of an

example and diagram​

Answer 1

Answer:

a) hydrogen gas is released when acid react with metal.

ex..2Na + 2Hcl =》2 Nacl + H2.

we can test by collecting gas in testing an then bring candle flame close to its mouth we will hear pop sound . which show presence of H2 gas