Question

1)C2H6. 2)C2H2. 3)CH4O. 4)C3H6. Which is the unsaturated hydrocarbon from the given?

Answer 1

C2H2 and C3H6 are unsaturated as they contain double and triple bond

Answer 2

$C_2H_2$ and $C_3H_6$ are unsaturated hydrocarbon.

Explanation:

Saturated hydrocarbons are defined as the hydrocarbons in which a single bond is present between carbon and carbon atoms. The general formula for these hydrocarbons is $C_nH_{2n+2}$

Unsaturated hydrocarbons are defined as the hydrocarbons which have double or triple covalent C-C bonds. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is $C_nH_{2n}$  and $C_nH_{2n-2}$

Thus $C_2H_2$ and $C_3H_6$ are unsaturated hydrocarbon with $C_2H_2$ being alkyne and $C_3H_6$ being an alkene.

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