Question:
X and Y in the below reaction are ----------- and ------------, respectively.
X and Y in the below reaction are ----------- and ------------, respectively.
Show Hint
Acid chloride + H$_2$/Pd-BaSO$_4$ → Aldehyde (Rosenmund reduction)
Updated On: May 1, 2026
- SOCl$_2$ and C$_6$H$_5$CHO
- (COCl)$_2$ and C$_6$H$_5$CH$_3$
- SOCl$_2$ and C$_6$H$_5$CH$_3$
- (COCl)$_2$ and C$_6$H$_5$CH$_2$OH
- SOCl$_2$ and C$_6$H$_5$CH$_2$Cl
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Concept:
• Carboxylic acids react with SOCl$_2$ to form acid chlorides.
• Acid chlorides undergo Rosenmund reduction to form aldehydes.
Step 1: Formation of acid chloride
\[ C_6H_5COOH + SOCl_2 \rightarrow C_6H_5COCl + SO_2 + HCl \] Thus, X = SOCl$_2$
Step 2: Rosenmund reduction
\[ C_6H_5COCl \xrightarrow{H_2/Pd/BaSO_4} C_6H_5CHO \] Thus, Y = benzaldehyde Final Conclusion: \[ \boxed{(A)} \]
Was this answer helpful?
0
0
Top KEAM Chemistry Questions
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
- $4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :
- Green chemistry deals with
- Neopentyl bromide undergoes dehydrohalogenation to give alkenes even though it has no $\beta$- hydrogen. This is due to
- Plot of $ log\text{ }x/m $ against log $p$ is a straight line inclined at an angle of $ 45{}^\circ $ . When the pressure is $ 0.5 \,arm $ and Freundlich parameter. $ k $ is $ 10 $ , the amount of solute adsorbed per gram of adsorbent will be $ (log\text{ }5=0.6990) $
View More Questions
Top KEAM Hydrocarbons Questions
- Sulfonation of benzene with excess sulfuric acid provides
- $ {{(C{{H}_{3}})}_{3}}CMgCl $ on reaction with $ {{D}_{2}}O $ produces
- Chlorination of benzene in the presence of halogen carrier is an example of
- Which one of the following reactions proceeds through free radical chain mechanism?
- In the eclipsed conformation of ethane, the dihedral angle between the hydrogen atoms of adjacent methyl groups is
View More Questions
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
View More Questions