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प्रश्न
Give the method of preparation of ethyne by 1, 2-dibromoethene.
उत्तर
When 1,2-dibromoethane (ethylene dibromide) is boiled with alcoholic potassium hydroxide, ethyne is formed.
\[\ce{\underset{ethylene dibromide}{CH2Br2 - CH2Br} + \underset{alcoholic}{2KOH} ->[200^\circ C][boiling] \underset{ethyne}{CH ≡ CH} + 2KBr + 2H2O}\]
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संबंधित प्रश्न
Choose the correct answer from the options given below:
If the molecular formula of an organic compound is C10H18 it is:
1) alkene
2) alkane
3) alkyne
4) Not a hydrocarbon
Using their structural formulae identify the functional group by circling them
Dimethyl ether
Write the structure of the following compound:
3-hexene
Give a chemical test to distinguish between ethene (ethylene) and ethyne (acetylene).
Give reasons:
Ethyne is more reactive than ethene.
What is the special feature of the structure of ethyne?
Write the equation for the following lab preparation:
Ethyne from Calcium carbide
Which of the following statements is wrong about alkanes?
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Chlorine
Alkynes undergo ______ reactions.
