Question:
Write the chemical equations when:
Pentan-3-one is treated with H$_2$N–NH$_2$ followed by heating with KOH in high boiling solvent such as ethylene glycol.
Write the chemical equations when:
Pentan-3-one is treated with H$_2$N–NH$_2$ followed by heating with KOH in high boiling solvent such as ethylene glycol.
Show Hint
The Wolff-Kishner reduction is used to convert ketones and aldehydes into alkanes by completely removing the oxygen atom.
Updated On: Jan 13, 2026
Hide Solution
Verified By Collegedunia
Solution and Explanation
When Pentan-3-one reacts with hydrazine (H$_2$N-NH$_2$), it forms a hydrazone derivative. Upon further heating with KOH in ethylene glycol, it undergoes the Wolff-Kishner reduction, leading to the complete removal of the carbonyl oxygen and yielding n-pentane. 
Was this answer helpful?
0
0
Top Questions on Aldehydes, Ketones and Carboxylic Acids
- Iodoform test can differentiate :
- JEE Main - 2026
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
Convert Ethanal to But-2-enal
- CBSE CLASS XII - 2025
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- Write the reaction involved in the following :
Clemmensen reduction- CBSE CLASS XII - 2025
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- An organic compound (X) having molecular formula C$_5$H$_{10$O can show various properties depending on its structures. Draw each of the structures if it :
shows Cannizzaro reaction.- CBSE CLASS XII - 2025
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
Write structure of the products of the following reactions:
- CBSE CLASS XII - 2025
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
View More Questions
Questions Asked in CBSE CLASS XII exam
- “The political power or kingship was rarely dependent on birth as Kshatriyas but also open to anyone who could muster support and resources.” Explain the statement with the examples from sixth century BCE onwards.
- CBSE CLASS XII - 2025
- Kinship, Caste and Class
- The distance of an object from the first focal point of a biconvex lens is \( X_1 \) and distance of the image from second focal point is \( X_2 \). The focal length of the lens is:
- Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (A), (B), (C), and (D) as given below.
Assertion (A): In double slit experiment, if one slit is closed, diffraction pattern due to the other slit will appear on the screen.
Reason (R): For interference, at least two waves are required.
- CBSE CLASS XII - 2025
- Wave optics
- Find the least value of ‘a’ so that $f(x) = 2x^2 - ax + 3$ is an increasing function on $[2, 4]$.
- CBSE CLASS XII - 2025
- Functions
From the following information, calculate opening and closing inventory :
- Gross Profit Ratio – 25%
- Revenue from operations – ₹ 8,00,000
- Inventory turnover ratio – 4 times
- Opening inventory was 2 times of the closing inventory.
- CBSE CLASS XII - 2025
- Balance sheet statement
View More Questions