Which of the following gives condensation wit | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Aldehydes and ketones react with hydroxylamine $(NH_2OH)$ to form oximes,which is a condensation reaction.Self-condensation (Aldol condensation) r

Vedclass · Accepted Answer

Methanal

Vedclass · Answer

(A) Aldehydes and ketones react with hydroxylamine $(NH_2OH)$ to form oximes,which is a condensation reaction.Self-condensation (Aldol condensation) requires the presence of at least one $\alpha$-hydrogen atom.Methanal $(HCHO)$ does not contain any $\alpha$-hydrogen atom,so it cannot undergo self-aldol condensation.Propanal $(CH_3CH_2CHO)$,Acetone $(CH_3COCH_3)$,and Ethanal $(CH_3CHO)$ all contain $\alpha$-hydrogen atoms and thus undergo self-condensation.Therefore,the correct answer is Methanal.

Which of the following gives condensation with hydroxylamine but does not undergo self-condensation?

Similar Questions

$CaOCl_2 + H_2O \longrightarrow Ca(OH)_2 + X$
$X + CH_3CHO \longrightarrow Y$
$Y + Ca(OH)_2 \longrightarrow CHCl_3$
What is '$Y$'?

Product of the reaction is

Identify the product for the following reaction: $CH_3-CO-CH_3 + HO-CH_2-CH_2-OH \xrightarrow{HCl} ?$

The major product of which of the following reactions is not obtained by a rearrangement reaction?

In the presence of dil. $HCl$,compound $A$ is converted to a constitutional isomer $(B)$. Compound $B$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module