Aldehyde and Ketone

The reaction of benzene with CO and HCl in the presence of anhydrous $\mathrm{AlCl}_3$ gives a compound $X \cdot X$ can also be obtained from which of the following reaction?

\(\text { Observe the following set of reactions }\)

\(\text { What are } X, Y \text { and } Z \text { respectively }\)

Toluene on reaction with reagent $A$ gives $X$. This $(X)$ forms 2, 4 dinitrophenylhydrazone and reduces ammoniacal silver nitrate solution. Reaction of toluene with another reagent $B$ forms $Y$, which dissolves in $\mathrm{NaHCO}_3$ with ...

Identify the compounds $A$ and $B$ involved in the formation of given aldol

The products $C$ and $D$ are

Which of the following reactions is an example of Clemmensen reduction?

Consider the following reaction sequence. $(A)$ and $(C)$ are$$
\mathrm{CH}_3 \mathrm{CHO} \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}]{\text {(i) } \mathrm{CH}_3 \mathrm{MgBr}}(A) \xrightarrow{\mathrm{H}_5 \mathrm{...

\(\text { Identify the product ' } P \text { ' in the given reaction sequence. }\)

\(\text { Toluene } \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{CrO}_2 \mathrm{Cl}_2 / \mathrm{CS}_2} X \xrightarrow{\text { Conc. } \mathrm{NaOH}} Y+Z\)
The correct statements about $Y$ and $Z$ are
A. $Y...

The functional groups present in the product ' $X$ ' of the reaction given below are

What is the major product $Z$ in the given reaction sequence?
$$ \left(\mathrm{CH}_3\right)_2 \mathrm{C}=\mathrm{O} \xrightarrow[\text { (ii) } 2 \mathrm{H}_2 \mathrm{O}^{+}]{(\mathrm{i}) \mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr}} \xrightarro...

Assertion (A) : Aldehydes are more reactive than ketones towards nucleophilic addition reactions
Reason (R) : In aldehydes, carbonyl carbon is less electrophilic compared to ketones.
The correct answer is

Identify the end product $(Z)$ in the sequence of the following reactions.

What is ' $Z$ ' in the given sequence of reactions?

$$ \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH} \xrightarrow[443 \mathrm{~K}]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} X \xrightarrow[\text { (ii) } \mathrm{Zn} / \mathrm{H}_2 \mathrm{O}\,(2 Moless)]{\text { (i) } \mathrm{O}_3} Y \xrightarrow...

What is ' $C$ ' in the following reaction sequence?

Identify the set, in which $X$ and $Y$ are correctly matched

\(\text { What is } B \text { in the given reaction? }\)

Arrange the following in the correct order of their reactivity towards nucleophilic addition reactions.

Consider the following sequence of reactions,
$$ \mathrm{C}_2 \mathrm{H}_4 \xrightarrow[\text { (ii) } \mathrm{Zn} / \mathrm{H}_2 \mathrm{O}]{\text { (i) } \mathrm{O}_3} P \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}...

The main reactants involved in Etard reaction are

Conversion of $X$ into $Y$ is an example of the reaction

Statement I Aldehyde on reaction with HCN gives cyanohydrin.
Statement II Cyanohydrin is a compound which consists of hydroxy and cyano groups on the same carbon.
Choose the correct answer from the following with reference to above statemen...

The product( $s$ ) formed when $m$-chlorobenzaldehyde is heated with concentrated NaOH is/are

\(\text { What is } X \text { in the following reaction sequence? }\)

In which of the following pairs reactant is correctly matched with reagent that would form benzaldehyde as product?

Identify $A$ and $B$ from the following reactions

Consider the following reaction sequence
The correct statements about $Z$ are
I. It gives yellow precipitate with $\mathrm{I}_2$ and NaOH solution.
II. It undergoes disproportionation reaction in the presence of concentrated NaOH solution.
...

What is the major product ' $C$ ' in the following sequence of reactions?

Which of the following represents Gatterman-Koch reaction?

In the reaction sequence, conversion of $B$ to $C$ is known as

Assertion (A) Ammonia and its derivatives form $\mathrm{H}_2 \mathrm{~N}-\mathrm{Z}$ undergo condensation reaction with carbonyl compounds (aldehydes and ketones).
Reason (R) This reaction is an example of irreversible reaction.
The correct...

\(\text { The major product in the following transformation is }\)

Benzene on reaction with acetyl chloride in the presence of anhydrous $\mathrm{AlCl}_3$ gave the product $P$. The product $P$ on reaction with methylmagnesium bromide followed by treatment with water furnished the product $Q$. The molecular...

In the following compounds, the ones that give positive iodoform test are

\(\text { Match the following. }\)


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A primary alcohol was reacted with pyridinium chlorochromate (PCC), which resulted in a product $P$. The product $P$ on treatment with ammonical silver nitrate solution produces

\(\text { Identify } X \text { and } Y \text { in the reactions, given below }\)

The major product formed in the following reaction sequence is

Which of the following reactions will give benzophenone as major product?
(A) Benzoyl chloride + benzene $+\mathrm{AlCl}_3$ (anhyd).
(B) Benzoyl chloride + phenylmagnesium bromide

     (excess)
(C) Benzoyl chloride + diphenyl cadmium

\(\text { The major product in the following reactions is }\)

\(\text { The major product of the following reaction is }\)

Propyne was subjected to a reaction with $\mathrm{HgSO}_4 /$ dil. $\mathrm{H}_2 \mathrm{SO}_4$, which resulted in a product $P$. The product $P$ was heated with $\mathrm{Ba}(\mathrm{OH})_2$ to give the product $Q$. The molecular formula of ...

The major product in the following reaction sequence is

Which of the following reactions gives carboxylate ion in their reaction mixture?

\(\text { What are } X \text { and } Y \text { in the following reaction sequence? }\)

An organic compound, ' $A$ ' with molecular formula $\mathrm{C}_8 \mathrm{H}_8 \mathrm{O}$ on reaction with $\mathrm{I}_2 / \mathrm{KOH}$ gives salt of carboxylic acid ' $B$ ' and a halo-compound ' $C$ '. Compound ' $C$ ' on the reaction wi...

The major products $P$ and $Q$ in the following reaction sequences are

\(\text { Identify } X \text { in the following. }\)

An alkene $A\left(\mathrm{C}_4 \mathrm{H}_8\right)$ exhibits cis/trans isomerism. $A$ on ozonolysis gives $B$, which when reacted with NaOH followed by hydroxylamine gave $C$. What are $B$ and $C$ ?