write any three preparation of alkanes?

Question

Aarti Gupta · Answer

Alkanes can be prepared by following ways:-
1.From unsaturated hydrocarbons:-By hydogenation using catalysts like Pd,Pt or Ni

2. From alkyl halides via Wurtz reaction:- In dry ether

CH₃Br + 2Na + BrCH₃ ------------> CH₃-CH₃+ 2NaBr

3.From carboxylic acids:-Sodium salt of carboxylic acids on heating with soda lime(mixture of NaOH + CaO) gives alkanes containing 1C atom less than the acid.CO₂removes form acid so process is called decarboxylation.

CH₃COONa + soda lime --------------> CH₄ + Na₂CO₃

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write any three preparation of alkanes?

write any three preparation of alkanes?

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