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Question

Show with the help of the structural formula of ethylene that it is an unsaturated hydrocarbon.

WBBSE Class X Physical Science Organic Chemistry 02 Mark 2026

Answer

Structural formula of ethylene (Câ‚‚Hâ‚„):

Hâ‚‚C = CHâ‚‚

Ethylene contains a carbon-carbon double bond (C=C). Therefore, the valencies of carbon atoms are not fully saturated with hydrogen atoms.

Hence, ethylene is an unsaturated hydrocarbon.

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