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SN1 Reaction Mechanism

Addition reac...

Question

Addition reactions and substitution reactions are types of organic reactions. Which type of reaction is shown by :
(ii) ethene

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Solution

Ethene shows addition reaction. When ethene is heated with steam in the presence of a catalyst of phosphoric acid at high pressure and temperature, ethanol is formed.
$C_{2} H_{4} + H_{2} O \to C H_{3} C H_{2} O H$

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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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Q. (i) What type of reaction takes place between ethane and chlorine to form monochloroethane?
(ii) The reaction between ethene and chlorine forms only one product. Name the type of the reaction.
(iii) (a) Draw the structural formula of ethene.
(b) What is the feature of the ethene structure, which allows ethene to react with chlorine in the way it does?

Q. Addition reactions and substitution reactions are types of organic reactions. Which type of reaction is shown by :
(i) ethane

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SN1 Reaction Mechanism

Standard XII Chemistry

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