Aldehyde And Ketone - Organic Chemistry - Chemistry Previous Year Questions

In the following reaction,

Which is the most suitable reagent for the following conversion?

The reagents \(A, B\) and \(C\) respectively are

The carbonyl compound that does not undergo aldol condensation is

The product 'P' is

An organic compound \(X\) on treatment with PCC in dichloromethane gives the compound \(Y\). Compound \(Y\) reacts with \(\mathrm{I}_2\) and alkali to form yellow precipitate of triiodomethane. The compound \(X\) is

$$\begin{aligned} & \mathrm{CH}_3 \mathrm{CHO} \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{CH}_3 \mathrm{MgBr}} A \xrightarrow[\Delta]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} \\ & B \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O}, \mathrm{OH}^{-}]{\text {(i) } \mathrm{B}_2 \mathrm{H}_6} C \\ & \end{aligned}$$

\(A\) and \(C\) are

\(A, B\) and \(C\) respectively are

Which is the most suitable reagent for the following conversion?

The test to differentiate between pentan-2-one and pentan-3-one is

The general name of the compound formed by the reaction between aldehyde and alcohol is

Compounds P and R in the following reaction are

$$\mathrm{C{H_3}CHO\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(ii)\,{H_3}{O^ + }}^{(i)\,C{H_3}MgBr}} P\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Heat}^{conc.\,{H_2}S{O_4}}} Q\mathrel{\mathop{\kern0pt\longrightarrow} \[\limits_{\matrix{\] {(i)\,{B_2}{H_6}} \cr {(ii)\,{H_2}{O_2}/O{H^ - }} \cr } }} R}$$

The heating of phenyl methyl ether with HI produces an aromatic compound \(A\) which on treatment with conc. \(\mathrm{HNO}_3\) gives \(B\). \(A\) and \(B\) respectively are

Arrange the following compounds in their decreasing order of reactivity towards Nucleop addition reaction.

$$\mathrm{CH}_3 \mathrm{COCH}_3, \mathrm{CH}_3 \mathrm{COC}_2 \mathrm{H}_5, \mathrm{CH}_3 \mathrm{CHO}$$

Oxidation of Toluene with chromyl chloride followed by hydrolysis gives Benzaldehyde. This reaction is known as ____________