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The major products A and B for the following reactions are, respectively : [A] KCN DMSO H 2 /Pd [B] O I

1. ; CN HO CH 2 –NH 2 HO H I
2. ; CH 2 NH 2 CN O O
3. ; CH 2 NH 2 CN O OH
4. ; CN HO CH 2 –NH 2 HO I I

Correct answer: ; CH 2 NH 2 CN O OH

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