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IUPAC name of following compound is : CH 3 – CH – CH 2 – CN NH 2

1. 2-Aminopentanenitrile
2. 2-Aminobutanenitrile
3. 3-Aminopropanenitrile
4. 3-Aminobutanenitrile

Correct answer: 3-Aminobutanenitrile

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