- Messages
- 59
- Reaction score
- 39
- Points
- 18
MCQ 27 and 28 with explanation.
27)
It took me a while to come to the answer of C. There is no denying that if the two molecules are hydrolysed that the products will be the same. However alkenes are normally said to undergo electrophilic addition. So what is wrong with A? The addition of bromine occurs in two steps. The first step is clearly electrophilic addition to form a positive ion. The second step however is addition of a nucleophile either Br- or OH-.
This seems to be more of a question of word play than organic chemistry. However that is often the case with MCQ. This question is a good example of why you have to practice the past papers so that if you encounter this question again or something like it you will not be confused by the choices.
28)
This is easier. If it is not reactive with mild oxidizing agents then it must be a tertiary alcohol. The -OH group must be on the carbon next to the benzene ring. Dehydration (this word implies that it is an alcohol) would give product D.