The false statement regarding alkanes is

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(B) Alkanes are saturated hydrocarbons and generally do not undergo addition reactions,which is why they do not decolourise bromine water or dilute $K

Vedclass · Accepted Answer

they do not undergo elimination reactions

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(B) Alkanes are saturated hydrocarbons and generally do not undergo addition reactions,which is why they do not decolourise bromine water or dilute $KMnO_{4}$ solution. They also do not typically undergo polymerization. However,alkanes do undergo elimination reactions,specifically dehydrogenation or cracking,when heated to high temperatures $(500-700^{\circ} C)$ in the absence of air. For example,propane undergoes cracking to form propene,ethene,methane,and hydrogen. Therefore,the statement that alkanes do not undergo elimination reactions is false.

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