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Bromine Water Test

Unsaturated h...

Question

Unsaturated hydrocarbons contain multiple bonds between the two C-atoms and show addition reaction. Give the test to distinguish ethane from ethene.

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Solution

The two are distinguished by subjecting them to Bromine-water test.

This reaction is not shown by ethane as it is addition reaction.

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Similar questions

Q. Assertion :Unsaturated hydrocarbons contain multiple bonds between the two

C -

atoms and show addition reactions. Reason: They also undergo many other chemical reactions that alkanes do not - the double bond in alkenes makes them more reactive than alkanes

Q. Give a chemical test to distinguish between:
(a) saturated and unsaturated compounds
(b) ethane and ethene
(c) ethene (ethylene) and ethyne (acetylene).

[3 MARKS]

Arrange Ethane, Ethene and Ethyne in decreasing order of the bond strength between the two carbon atoms in the given hydrocarbons.

Q. Statement 1: The addition of

H_{2}

to ethene will form an unsaturated compound called ethane
Statement 2: Ethane, has as many hydrogen atoms bonded to the carbon atoms as possible

Q. (a) Distinguish between the saturated hydrocarbon ethane and the unsaturated hydrocarbon ethene by drawing their structural formulae.
(b) Addition reaction and substitution reactions are types of organic reactions. Which type of reaction is shown by:
(i) ethane
(ii) ethene?
(c) (i) Write the equation for the complete combustion of ethane.
(ii) Using appropriate catalysts, ethane can be oxidized to an alcohol, an aldehyde and an acid. Name the alcohol, aldehyde and acid formed when ethane is oxidized.
(d) (i) Why is pure acetic acid known as glacial acetic acid?
(ii) What type of compound is formed by the reaction between acetic acid and an alcohol?

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Bromine Water Test

Standard X Chemistry

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