Question

Alkenes or alkynes are more reactive than their corresponding alkanes. True/False​

Answer 1

true

Explanation:

Alkenes and alkynes are generally more reactive than alkanes due to the electron density available in their pi bonds. In particular, these molecules can participate in a variety of addition reactions and can be used in polymer formation.

Answer 2

The statement alkenes or alkynes are more reactive than their corresponding alkanes, is true.

Explanation:

• It is known that general chemical formula of alkanes is $C_{n}H_{2n+2}$, where n is a whole number. General chemical formula of alkenes is $C_{n}H_{2n}$ and general chemical formula of alkynes is $C_{n}H_{2n-2}$.

• In alkanes, all the atoms are bonded through a single bond, in alkenes there exists atleast one double bond and in alkynes there exist atleast one triple bond.

• Due to the presence of pi-bonds in both alkenes and alkynes these can be easily broken down in order to combine with other atoms. Since, there exists no pi-bond in alkanes so its bonds require more energy in order to be broken down. Hence, alkanes are less reactive in nature.

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