11 (a) Explain the difference in structure between an alkane and an alkene. (b) Name the alkane and the alkene each of which have two carbon atoms in a molecule. (c) Describe a test, with results, to distinguish between an alkane and an alkene. (d) Name a type of product made from alkenes.

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Asked on July 27, 2026Chemistry

This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

Accepted Answer · 2026-07-27T21:02:06.216Z

here are the answers to your chemistry questions. 11 (a) Alkanes are saturated hydrocarbons containing only carbon-carbon single bonds. Alkenes are unsaturated hydrocarbons containing at least one carbon-carbon double bond. 11 (b) alkane: Ethane alkene: Ethene 11 (c) Test: Add aqueous bromine (bromine water) to both the alkane and the alkene. Results: • The alkane will show no change; the bromine water will remain orange/brown. • The alkene will decolourize the bromine water, turning it colourless. This is because alkenes undergo an addition reaction with bromine due to their carbon-carbon double bond, while alkanes do not. 11 (d) A type of product made from alkenes is polymers (plastics). What's next?

Accepted Answer · 2026-07-27T21:02:06.216Z

here are the answers to your chemistry questions. 11 (a) Alkanes are saturated hydrocarbons containing only carbon-carbon single bonds. Alkenes are unsaturated hydrocarbons containing at least one carbon-carbon double bond. 11 (b) alkane: Ethane alkene: Ethene 11 (c) Test: Add aqueous bromine (bromine water) to both the alkane and the alkene. Results: • The alkane will show no change; the bromine water will remain orange/brown. • The alkene will decolourize the bromine water, turning it colourless. This is because alkenes undergo an addition reaction with bromine due to their carbon-carbon double bond, while alkanes do not. 11 (d) A type of product made from alkenes is polymers (plastics). What's next?

11 (a) Explain the difference in structure between an alkane and an alkene. (b) Name the alkane and the alkene each of which have two carbon atoms in a molecule. (c) Describe a test, with results, to distinguish between an alkane and an alkene. (d) Name a type of product made from alkenes.

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11 (a) Explain the difference in structure between an alkane and an alkene. (b) Name the alkane and the alkene each of which have two carbon atoms in a molecule. (c) Describe a test, with results, to distinguish between an alkane and an alkene. (d) Name a type of product made from alkenes.

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