Q11 / 54 · JEE Advanced 2016 (Paper 2) · Chemistry

Reagent(s) which can be used to bring about the following transformation is(are)


Figure

  • A
    LiAlH4 in C2H52O
  • B
    BH3 in THF
  • Correct answer
    C
    NaBH4 in C2H5OH 
  • Correct answer
    D
    Raney Ni/H2 in THF

Solution

Figure
LiAlH4 in C2H52O, BH3 in (THF), Raney  Ni/H2 either can reduce all functional groups or can reduce some of the functional groups of the compound given above in the reactant side. But, NaBH4 is an example of selective reducing agent. It cannot reduce, Figure (ester group) , Figure (carboxylic acid group) , Figure (epoxide group). But reduces -CH=O (aldehyde group) into -CH2OH 1o alcohol.

Hence, the correct answer is options: 'C', 'D'.

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