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The most appropriate reagent for conversion of C2H5CN into CH3CH2CH2NH2 is:

1. Na(CN)BH3
2. LiAlH4
3. NaBH4
4. CaH2

Correct answer: LiAlH4

Solution

LiAlH4 is a strong reducing agent that can effectively reduce nitriles like C2H5CN to primary amines, such as CH3CH2CH2NH2, by adding hydrogen across the carbon-nitrogen triple bond.

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