(a) This reaction is known as Etard reaction. 
(b) This reaction is called Rosenmund reaction. 
(c) The above reaction is known as Gattermann-Koch aldehyde synthesis. 
(d) Thus, from the reagents given in option (d) benzaldehyde is not obtained.
Reaction by which benzaldehyde cannot be prepared?
NEET UG 2013 — Chemistry Organic Chemistry
2013mcqmedium
Reaction by which benzaldehyde cannot be prepared?
Official previous-year question
Held on 30 Apr 2013 · Verified 9 Jul 2026.
Options
- A
- B
- C
- D
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Organic Chemistry in other years
More NEET UG Organic Chemistry questions
Markovnikov's rule is applicable to:
2026easy
Which of the following is a reducing sugar?
2026easy
Name the class of enzyme that usually catalyze the following reaction : $\mathrm{S}-\mathrm{G}+\mathrm{S}^{\#} \rightarrow \mathrm{~S}+\mathrm{S}^{\#}-\mathrm{G}$ Where, $G \rightarrow$ a group other than hydrogen $S \rightarrow$ a substrate $\mathrm{S}^{\#} \rightarrow$ another substrate
2025medium
Identify the suitable reagent for the following conversion 
2025medium
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : undergoes $\mathrm{S}_{\mathrm{N}} 2$ reaction faster than Reason (R) : Iodine is a better leaving group because of its large size. In the light of the above statements, choose the correct answer from the options given below :
2025easy
Other Chemistry topics for NEET UG
Keep practicing Organic Chemistry
Work through every NEET UG Organic Chemistry PYQ, year by year.