An organic compound x where the molar ratio o | vedclass

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

Question

(C) Let the empirical formula be $(COH)_{n}$.The molar mass is $12n + 16n + n = 29n = 58 \Rightarrow n = 2$.Thus,the molecular formula is $C_{2}H_{2}O

Vedclass · Accepted Answer

$HO - CH_{2} - COOH$

Vedclass · Answer

(C) Let the empirical formula be $(COH)_{n}$.The molar mass is $12n + 16n + n = 29n = 58 \Rightarrow n = 2$.Thus,the molecular formula is $C_{2}H_{2}O_{2}$,which corresponds to glyoxal $(CHO-CHO)$.Glyoxal contains two aldehyde groups and lacks $\alpha$-hydrogen atoms,so it undergoes the Cannizzaro reaction in the presence of $50\% \ KOH$.In this reaction,one aldehyde group is oxidized to a carboxylate group and the other is reduced to a primary alcohol group.$CHO-CHO + KOH \rightarrow HO-CH_{2}-COOK$.Upon acidification,the salt converts to glycolic acid: $HO-CH_{2}-COOH$.Therefore,the correct structure of $y$ is $HO-CH_{2}-COOH$.

An organic compound $x$ where the molar ratio of $C$,$O$,and $H$ are equal,on treatment with $50\% \ KOH$ under reflux followed by acidification produced $y$. The most likely structure of $y$ is: [Molar mass of $x$ is $58 \ g \ mol^{-1}$]

Similar Questions

The major product of the above reaction is $A$.

$A$ and $B$ are isomers. Identify $B$.

Which of the following does not effect the transformation shown below?
$R_2C=O \rightarrow R_2CH_2$

Identify the name of the reaction when an aldehyde or ketone reacts with $Zn-Hg / \text{conc. } HCl$ to give an alkane.

The haloform test is given by which of the following substances?

Vedclass Test Series

Exam Paper Generator

Online Exam Module