Question

complete the following reaction (1) CH2= CH2 + H2 pt/523 - 573k (2) CH3 - CH = CH2 + HBR =​

Answer 1

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Answer 2

The complete reactions are as follows:

• This reaction is known as hydrogenation of ethene. The complete reaction is as follows:

CH₂=CH₂ + H₂ pt/523-573 K → CH₃-CH₃

• When propene reacts with HBr it gives 2- bromopropane (major product) and 1- bromopropane (minor product). We get two products due to the s=unsymmetrical nature of propene. The addition of bromine is done on the basis of Markonikov rule. The complete reaction is as follows:

CH₃-CH=CH₂ + HBR → CH₃CH₂CH₂Br + CH₃CH₂BrCH₃