Aldehydes & ketones & carboxylic acids practice · Mixed difficulty

Which of the following contain an aldehyde?

The yield of ester in esterification can be increased by

$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{CH}_3 \mathrm{COOH} \rightleftharpoons \mathrm{CH}_3 \mathrm{COOCH}_2 \mathrm{CH}_3+\mathrm{H}_2 \mathrm{O}$

Ketones can be prepared by:

Cannizzaro reaction is given by

$\mathrm{C}{\mathrm{H}_3}\mathrm{COC}{\mathrm{H}_3}\;and\;\mathrm{C}{\mathrm{H}_3}\mathrm{C}{\mathrm{H}_2}\mathrm{CHO}$ can be distinguished by

A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is

Acetone is prepared by:

What is the product in the reaction

$\mathrm{C}{\mathrm{H}_3}\mathrm{CON}{\mathrm{H}_2}\xrightarrow{{\mathrm{NaO}{\mathrm{H}_2}/\mathrm{HCl}}}X?$

Most acidic compound among the following is

Chloral belongs to the class of:

Acetic acid on warming with hydrazoic acid in presence of $conc.{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}$ gives:

Various products formed on oxidation of 2,5-dimetylhexan-3-one are

i) ${\text{C}}{{\text{H}}_{\text{3}}} - \mathop {\text{C}}\limits_{\begin{array}{cccccccccccccccccccc} | \\ {{\text{C}}{{\text{H}}_{\text{3}}}} \end{array}} {\text{H}} - {\text{COOH}}$

ii) ${\text{C}}{{\text{H}}_{\text{3}}} - \mathop {\text{C}}\limits_{\begin{array}{cccccccccccccccccccc} | \\ {{\text{C}}{{\text{H}}_3}} \end{array}} {\text{H}} - {\text{C}}{{\text{H}}_2} - {\text{COOH}}$

iii) $\mathrm{CH}_3 \mathrm{COOH}$

iv) $\mathrm{HCOOH}$

Carboxylic acids are more acidic than phenol and alcohol because of

Formalin is:

In Clemmensen reduction, carboxyl compound is treated with

Order of Acidic strength of following carboxylic acids is
$\begin{array}{cccccccccccccccccccc} {{\text{A)}}\,\,{C_6}{H_5}COOH}&{{\text{B)}}\,C{H_3}C{H_2}COOH}&{{\text{C)}}\,C{H_3}COOH}&{{\text{D)}}\,{C_6}{H_5}C{H_2}COOH} \end{array}$

An optically active compound '${X}$' has molecular formula ${C}_4 {H}_8{O}_3$. It evolves ${CO}_2$ with ${NaHCO}_3$.
'${X}$' reacts with ${LiAlH}_4$ to give an achiral compound '${X}$' is

Commercially carboxylic acids are reduced to
alcohols by converting them to the _____

Statement-1: $p$-Methoxybenzaldehyde undergoes nucleophilic addition more readily than $p$-nitrobenzaldehyde.

Statement-2: The carbon atom of the aldehyde group is more electrophilic in $p$-nitrobenzaldehyde than in $p$-Methoxybenzaldehyde.

$\mathrm{C}_5 \mathrm{H}_{10} \mathrm{O}$ is a carbonyl compound. The number of carbonyl structural isomers possible for this molecular formula are

Statement-I: ${CH}_2 {F}-{COOH}$ is more acidic than ${CH}_2 {Cl}-{COOH}$

Statement-II: ${O}_2 {N}-{CH}_2-{COOH}$ is less acidic than ${NC}-{CH}_2-{COOH}$

The reaction

$R\mathrm{COOH} + {\mathrm{N}_3}\mathrm{H}\xrightarrow{{\mathrm{Conc}\mathrm{.}{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}}}R\mathrm{N}{\mathrm{H}_2} + \mathrm{C}{\mathrm{O}_2} + {\mathrm{N}_2}$

is called

Assertion (A): Ethyl acetoacetate forms butane-1,4-diol with ${NaBH}_4$

Reason (R): ${NaBH}_4$ can reduces ketone and esters group.

The reaction, $C{H_3}CHO + {H_2}N - N{H_2} \to C{H_3}CH = N.\,\,N{H_2}$ is

Which can reduce $R\mathrm{COOH}\, \to \,\,R\mathrm{C}{\mathrm{H}_2}\mathrm{OH}$ ?

In which of the following reaction, carbon-carbon
bond formation does not occur:

Among the following which has lowest $\mathrm{p}{K_a}$ values:

Benzoin is

${\mathrm{C}_6}{\mathrm{H}_5}\mathrm{CHO} + \mathrm{HCN} \to {\mathrm{C}_6}{\mathrm{H}_5}\mathrm{CH}\left( {\mathrm{CN}} \right)\mathrm{OH};$ the product is:

Among the following acids which has the lowest $\mathrm{p}{K_a}$ value?