During preparation of ester, the bridge oxygen is from:
Correct answer: A. Alcohol
- A. Alcohol
- B. Acid
- C. Alcohol or acid
- D. Catalyst
Explanation
In the context of ester formation, the term "bridge oxygen" might be referring to the oxygen atom that bridges between the alcohol and the carboxylic acid in the esterification reaction. The bridge oxygen is usually part of the hydroxyl group of the alcohol and the carbonyl group of the carboxylic acid.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alcohols and Phenols questions
Esterification takes place when an alcohol reacts with:
Which of the following reacts with aqueous alkaline iodine:
Tertiary alcohols with acidified dichromate give:
When an alcohol reacts with PX5, the order or reactivity of alcohol is
When ethanol reacts with sodium metal than:
The number of moles of diol are required to produce one mole of hydrogen gas: