In the conversion of ethylene into acetaldehyde, cupric chloride acts as:
Correct answer: B. Promoter
- A. Initiator
- B. Promoter
- C. Catalyst
- D. Reactant
Explanation
Explanation:In the conversion of ethylene into acetaldehyde, cupric chloride acts as promoter. An initiator is a substance that initiates or starts a chemical reaction. Cupric chloride does not initiate the reaction between ethylene and oxygen to form acetaldehyde. Cupric chloride does not act as a catalyst in the conversion of ethylene into acetaldehyde since it is consumed during the reaction. A reactant is a substance that undergoes a chemical reaction. Cupric chloride is not a reactant in the conversion of ethylene into acetaldehyde.
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About Preparation of Aldehydes and Ketones
Aldehydes and ketones are prepared mainly by controlled oxidation or dehydrogenation of primary and secondary alcohols, respectively. The topic also includes ozonolysis of alkenes, hydration of alkynes and preparation through acyl derivatives, with attention to why primary alcohols can give aldehydes whereas secondary alcohols give ketones.
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