NEET UG CHEMISTRY MCQ: HYDROCARBONS

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Kolbe’s synthesis of sodium salt of butanoic acid gives:

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Correct option: A

n-hexane

Option A (n-hexane) is correct because Kolbe's electrolysis of butanoic acid's sodium salt results in the formation of a symmetrical alkane with double the carbon atoms.

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The reaction of alkanes with halogen is explosive in the case of: A mixture of sodium benzoate and soda lime on heating produces The major product of the following reaction is

C{H_3}C \equiv CH\xrightarrow[{(ii)\;DI}]{{(i)\;DCl\;(1\;equiv.)}}

S-I : Heavy metal acetylides can be used to purify alkynes
S-II: Terminal alkynes form acetylides which are soluble in acids. Select the incorrect statement regarding A

C{H_3} - C \equiv CH + {H_2}OA

Kharasch effect is based on