Draw the structure of following derivatives:
i. 2,4-Dinitrophylhydrazone of benzaldehyde.
ii. Cyclopropanone oxime
iii. Actaldehyde dimethyl acetal
iv. Semicarbazone of cyclobutanone
v. Ethylene ketal of hexan-3-one
vi. Methyl hemiacetal of formaldehyde

Explanation

To solve the question, we need to draw the structures of the specified derivatives of aldehydes and ketones. Here’s a step-by-step breakdown for each derivative:

### i. 2,4-Dinitrophenylhydrazone of Benzaldehyde

1. **Identify Benzaldehyde Structure**: Benzaldehyde has the structure C6H5CHO.
2. **React with 2,4-Dinitrophenylhydrazine**: The reaction involves the nucleophilic addition of 2,4-Dinitrophenylhydrazine (C6H3(NH2)(NO2)2) to the carbonyl carbon of benzaldehyde.
3. **Elimination of Water**: During the reaction, a molecule of water (H2O) is eliminated.
4. **Final Structure**: The resulting structure will have a hydrazone functional group (C=N) connected to the benzene ring and the dinitrophenyl group.
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