In a reaction of ethane and hydrochloric acid, the hydrogen ion acts as:
Correct answer: B. Electrophiles
- A. Nucleophiles
- B. Electrophiles
- C. Carbon ions
- D. Carbonium ions
Explanation
Alkenes undergo electrophilic substitution reaction. Hence in the reaction between ethene and HCl, hydrogen acts as an electrophile and is added first followed by the addition of chlorine. The mechanism of this reaction is given below for a better understanding:
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About Alkenes
Alkenes are unsaturated hydrocarbons containing a carbon-carbon double bond with sigma and pi components and restricted rotation. Their reactions include electrophilic addition of hydrogen, halogens, hydrogen halides and water, with Markovnikov orientation, oxidation, combustion and polymerisation, while their preparation commonly involves elimination from alkyl halides or alcohols.
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