Methods of Preparation of Alcohols

Match the conversions with the reagents that are used in the process:

In the following sequence of reactions,

The compound D is –

Which of the following compound gives $3$-Ethylpentan-$3$-ol by the action of ethyl magnesium iodide followed by acid hydrolysis?

Which of the following alcohols cannot be prepared by reduction of carbonyl compounds?

$\mathrm{R}-\mathrm{MgX}+\mathrm{HCHO} \to \left[\mathrm{P}\right],$here $\left[\mathrm{P}\right]$ is

In the conversion of starch into alcohol, the following enzymes are used:

Propene on oxidation with diborane in presence of alkaline hydrogen peroxide gives _______.

The major products $\mathrm{P}, \mathrm{Q}$ and $\mathrm{R}$ in the following reaction sequence, are

$\mathrm{Ph}-{\mathrm{CH}}_2-\mathrm{CH}={\mathrm{CH}}_2\stackrel{\mathrm{dil} {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }\mathrm{X}$, Identify product $\text{'}\mathrm{X}\text{'}$ is :

Five isomeric p-substituted aromatic compound (A) to (E) with molecular formula C₈H₈O₂ are given for identification. Based on the following observation, give the structures of the compounds.

i. Both (A) and (B) form a silver mirror with Tollen's reagent. (B) also gives a positive test with neutral FeCl₃ solution.

ii. (C) gives positive iodoform test.

iii. (D) is readily extracted in aqueous NaHCO₃ solution.

iv. (E) on acid hydrolysis gives 1, 4-dihydroxybenzene.

Compound (E) is :

Which of the following are used to convert $\mathrm{RCHO}$ into${\mathrm{RCH}}_2\mathrm{OH}$?

The reduction of acetone by $\mathrm{Mg}-\mathrm{Hg}$ gives:

Through which of the following reactions number of carbon atoms can be increased in the chain?

Using Grignard reagent, suggest synthesis of following alcohol from aldehydes or ketones. Whenever possible, suggest more than one combination.

Using Grignard reagent, suggest synthesis of following alcohol from aldehydes or ketones. Whenever possible, suggest more than one combination.

Using Grignard reagent, suggest synthesis of following alcohol from aldehydes or ketones. Whenever possible, suggest more than one combination.

${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{OH}$

Using Grignard reagent, suggest synthesis of following alcohol from aldehyde or ketone. Whenever possible, suggest more than one combination.

Write the structure of carbonyl compound that can be converted by reduction methods into following alcohol.

Write the structure of carbonyl compound that can be converted by reduction method into following alcohol.

${\left({\mathrm{CH}}_3\right)}_2\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{OH}$