Question

Convert 1, 2 -Dibromoethane to Ethyne...​

Answer 1

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Answer 2

$\bold{HYDROCARBON}$

Hydrocarbons are the compounds having hydrogen and carbon.

They are of two types:-

▶Saturated

✳Alkanes

▶Unsaturated

✳Alkene

✳Alkyne

$\bold{ETHYNE}$

Ethyne(Alkyne) is a unsaturated hydrocarbon compound which have triple bond amongst its carbon atoms refered to as acetylene linkage.

$\large \bold{Preparation \: of \: ethyne}$

$\bold{REACTANTS}$

▶1 , 2 dibromoethane

▶Hot concentrate alcoholic pottasim hydroxide.

$\bold{PRODUCT}$

▶Ethyne

▶Water

▶Potassium bromide.

$\bold{EXPERIMENT}$

Heat 1 , 2 dibromoethane with with alcoholic potassium hydroxide solution in a flask. And collect the product by downward displacement of water.

This happens by the process of dehydrohalogination.

Dehydr = removal of water

Dehalogenation = removal of halogen.

$\bold{EQUATION}$

${C_2H_2Br_2 + 2KOH \longrightarrow C_2H_2 + 2KBr + 2H_2O}$