\(\xrightarrow{NH_2-NH_2/KOH}\;\; Product\)
\(\xrightarrow{NH_2-NH_2/KOH}\;\; Product\)- Alcohol
- Alkane
- Alkene
- Ester
The Correct Option is B
Solution and Explanation
The Wolff–Kishner reduction is a chemical reaction used to reduce ketones and aldehydes to alkanes. In this reaction, the carbonyl group (\(C=O\)) of a ketone or aldehyde is converted into a methylene group (\(CH_2\)). This is achieved using hydrazine (\(NH_2-NH_2\)) and a strong base such as \(KOH\).
- When the given compound, which is a ketone, undergoes Wolff–Kishner reduction, the carbonyl group is first reacted with hydrazine to form a hydrazone intermediate.
- Under basic conditions with \(KOH\), the hydrazone is further decomposed to produce an alkane and release nitrogen gas (\(N_2\)).
The given reaction can be represented as follows:
| + | \(NH_2-NH_2\) | \(\xrightarrow{KOH}\) | Alkane | + | \(N_2\) |
Conclusion: The Wolff–Kishner reduction converts the ketone in the given compound to an alkane. Therefore, the correct answer is Alkane.
Top Questions on carbonyl compounds
- The statements that are incorrect about the nickel(II) complex of dimethylglyoxime are :
A. It is red in colour.
B. It has a high solubility in water at pH = 9.
C. The Ni ion has two unpaired d-electrons.
D. The N – Ni – N bond angle is almost close to 90°.
E. The complex contains four five-membered metallacycles (metal containing rings).
Choose the correct answer from the options given below :- JEE Main - 2026
- Chemistry
- carbonyl compounds
Given below are the four isomeric compounds \(P, Q, R, S\):
\(P\): Aromatic compound containing an \(-\mathrm{OH}\) group
\(Q\): Aromatic compound containing an \(-\mathrm{CHO}\) group (aldehyde)
\(R\): Aromatic compound containing a ketone group
\(S\): Aromatic compound containing a ketone group Identify the correct statements from below:
[A.] \(Q, R\) and \(S\) will give precipitate with \(2,4\)-DNP.
[B.] \(P\) and \(Q\) will give positive Baeyer’s test.
[C.] \(Q\) and \(R\) will give sooty flame.
[D.] \(R\) and \(S\) will give yellow precipitate with \(I_2/\mathrm{NaOH}\).
[E.] \(Q\) alone will deposit silver with Tollens’ reagent. Choose the correct option.- JEE Main - 2026
- Chemistry
- carbonyl compounds
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:- JEE Main - 2026
- Chemistry
- carbonyl compounds
- Which of the following is the correct order with respect to the property indicated?
- JEE Main - 2026
- Chemistry
- carbonyl compounds
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