JEE Previous Year Question
Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers are idependently reacted with NaBH4
Topic: JEE PYQ
Answer: 5. Full step-by-step solution below.
Correct answer: 5
Solution
5Sol. CnH2nO, MW = 12n + 2n + 16 = 100 ∴ 14n = 84 ∴ n = 6
Six such ketones exist :
C6H12O
(+) & (–) (+) & (–) (+) & (–) (+) & (–) diastere. (+) & (–) diaste.
Thus, 5 such ketones give a racemic mixture
More Aldehydes & Ketones PYQs
- Match List-I with List-II (matching question)
- and can be distinguished chemically by
- The major product of the following reaction is :…
- The correct order of reactivity of aldehydes and ketones towards hydrogen cyanide is
- Given below are two statements: Statement-I :can be used for oxidation of aldehydes and ketones. Stateme…