Question:
Identify the product obtained when Grignard reagent reacts with alkyl cyanide followed by acid hydrolysis.
Identify the product obtained when Grignard reagent reacts with alkyl cyanide followed by acid hydrolysis.
Show Hint
RMgX adds to the C-N triple bond, and hydrolysis gives a ketone.
Updated On: Oct 1, 2026
- an aldehyde
- a ketone
- a primary alcohol
- a secondary alcohol
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Write the reaction
\[ \text{R}'\text{MgX}+\text{RC}\equiv\text{N}\to\text{RC(=NMgX)R}'\xrightarrow{\text{H}_3\text{O}^+}\text{RCOR}' \]
Step 2: Result
The imine intermediate hydrolyses to a ketone. Option (B).
Final Answer:
A ketone is obtained, option (B). \[ \boxed{\text{(B)}} \]
\[ \text{R}'\text{MgX}+\text{RC}\equiv\text{N}\to\text{RC(=NMgX)R}'\xrightarrow{\text{H}_3\text{O}^+}\text{RCOR}' \]
Step 2: Result
The imine intermediate hydrolyses to a ketone. Option (B).
Final Answer:
A ketone is obtained, option (B). \[ \boxed{\text{(B)}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Aldehydes, Ketones and Carboxylic Acids Questions
- The number of pi-bonds present in benzoic acid molecule are
- Ethyl methyl ketone is obtained by heating calcium salts of
- Formalin is the commercial name of
- An ester $ (A) $ with molecular formula $ C_9H_{10}O_2 $ was treated with excess of $ CH_3MgBr $ and the complex so formed was treated with $ H_2SO_4 $ to give an olefin $ (B) $ . Ozonolysis of $ (B) $ gave a ketone with molecular formula $ C_8H_8O $ which shows positive iodoform test. The structure of $ (A) $ is
- Cannizaro?s reaction is not given by
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions