Question

1) The gas librated when an acid reacts with a metal is
(a) hydrogen (b) chlorine
(c) carbon dioxide (d) nitrogen dioxide

2) the hydro n carbon that under goes addition reaction among the following is
(a) C2 H6 (b) C3 H3 (c) CH4 (d) C3H6
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Answer 1

Explanation:

1) hydrogen

The gas librated when an acid reacts with a metal is hydrogen .