Question
Complete each synthesis by giving missing starting material, reagent or products:-
✓
Answer
More nucleophilic $NH _2 NH$ part of $H _2 NNHCONH _2$ reacts with carbonyl carbon to form semicarbazone:
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| Column I | Column II | ||
| (i) |  |
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| (ii) |  |
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| (iii) |  |
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| (iv) |  |
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