Question

Consider all possible isomeric ketones, including stereoisomers, of MW = 100. All these isomers are independently reacted with `NaBH_(4)` (NOTE: stereoisomers are also reacted separately). The total number of ketones that give a racemic product(s) is/are

Answer 1

Correct Answer - 5
`C_(n)H_(2n)O, M_(w) = 12n+2n + 16 = 100`
`:. 14n = 84 :. N = 6`
Six such ketones exist

Thus, 5 such ketones give a racemic mixture