Embibe Experts Solutions for Chapter: Alcohols, Phenols and Ethers, Exercise 1: VITEEE 2017

A Fischer projection of $\left(2\mathrm{R},3\mathrm{S}\right)-2,3$-butanediol is:

 the reactant $\mathrm{A}$ is:

An organic compound $\text{'}\mathrm{A}\text{'}$ has the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O},$ it undergoes the iodoform test. When saturated with diluted $\mathrm{HCl}$, it gives $\text{'}\mathrm{B}\text{'}$ of molecular formula ${\mathrm{C}}_9{\mathrm{H}}_{14}\mathrm{O}.$ $\mathrm{A}$ and $\mathrm{B}$, respectively are

Ethylene glycol, on oxidation with per-iodic acid, gives

In the reaction, ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH}\stackrel{\mathrm{NaOH}}{⟶}\left(\mathrm{A}\right)$
$\frac{{\mathrm{CO}}_2}{140°\mathrm{C},\left(4-7\right)\mathrm{atm}}\left(\mathrm{B}\right)\stackrel{\mathrm{HCl}}{⟶}\left(\mathrm{C}\right),$ the compound $\left(\mathrm{C}\right)$ is:

$\mathrm{p}$-cresol reacts with chloroform in an alkaline medium to give compound $\mathrm{A}$, which adds hydrogen cyanide to form compound $\mathrm{B}$. The latter on acidic hydrolysis gives chiral carboxylic acid. What is the structure of carboxylic acid?

When acetylene is passed into methanol at $160-200 °\mathrm{C},$ in the presence of a small amount of potassium methoxide under pressure, the following is formed:

What is $\mathrm{X}$ in the following change?