Aldehyde and Ketone · Chemistry · TS EAMCET
MCQ (Single Correct Answer)
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 evolution of $\mathrm{CO}_2$. What are $A$ and $B$ respectively?
$$ \text { Observe the following set of reactions } $$
$$ \text { What are } X, Y \text { and } Z \text { respectively } $$
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?
Which of the following reactions is an example of Clemmensen reduction?
Identify the compounds $A$ and $B$ involved in the formation of given aldol
The products $C$ and $D$ are
$$ \text { Toluene } \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{CrO}_2 \mathrm{Cl}_2 / \mathrm{CS}_2} X \xrightarrow{\text { Conc. } \mathrm{NaOH}} Y+Z $$
The correct statements about $Y$ and $Z$ are
A. $Y$ is a secondary alcohol.
B. $Y$ is the reduction product of $X$.
C. $Z$ on heating with sodalime gives benzene.
D. $Y$ does not give $\mathrm{H}_2$ gas with Na metal.
$$ \text { Identify the product ' } P \text { ' in the given reaction sequence. } $$
Consider the following reaction sequence. $(A)$ and $(C)$ are
$$ \mathrm{CH}_3 \mathrm{CHO} \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}]{\text {(i) } \mathrm{CH}_3 \mathrm{MgBr}}(A) \xrightarrow{\mathrm{H}_5 \mathrm{SO}_4 . \Delta}(B) \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{O}_2 / \mathrm{OH}^{-}]{\text {(i) } \mathrm{B}_3 \mathrm{H}_6}(C) $$Identify the end product $(Z)$ in the sequence of the following reactions.
What is ' $Z$ ' in the given sequence of reactions?
Identify the set, in which $X$ and $Y$ are correctly matched
$$ \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH} \xrightarrow[443 \mathrm{~K}]{\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4} X \xrightarrow[\text { (ii) } \mathrm{Zn} / \mathrm{H}_2 \mathrm{O}\,(2 Moless)]{\text { (i) } \mathrm{O}_3} Y \xrightarrow[\text { (i) } \mathrm{H}^{+}]{\text {(i) Conc. } \mathrm{NaOH}} \mathrm{Z} $$
$Z$ is a mixture of alcohol and acid. Reaction of conversion of $Y$ to $Z$ is
What is ' $C$ ' in the following reaction sequence?
The functional groups present in the product ' $X$ ' of the reaction given below are
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
What is the major product $Z$ in the given reaction sequence?
$$ \left(\mathrm{CH}_3\right)_2 \mathrm{C}=\mathrm{O} \xrightarrow[\text { (ii) } 2 \mathrm{H}_2 \mathrm{O}^{+}]{(\mathrm{i}) \mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr}} \xrightarrow[\Delta]{\substack{\text { (i) } \mathrm{OOCl}_2 \\ \text { (ii) } \mathrm{CH}_3 \mathrm{ONa}}} Y \xrightarrow[\text { Peroxide }]{\mathrm{HBr}} Z $$
Conversion of $X$ into $Y$ is an example of the reaction
The main reactants involved in Etard reaction are
Consider the following sequence of reactions,
$$ \mathrm{C}_2 \mathrm{H}_4 \xrightarrow[\text { (ii) } \mathrm{Zn} / \mathrm{H}_2 \mathrm{O}]{\text { (i) } \mathrm{O}_3} P \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}]{\text {(i) } \mathrm{CH}_3 \mathrm{MgBr} / \text { Ether }} Q \xrightarrow[\mathrm{CH}_2 \mathrm{Cl}_2]{\mathrm{PCC}} R $$
The incorrect statement about $R$ is
Arrange the following in the correct order of their reactivity towards nucleophilic addition reactions.
$$ \text { What is } B \text { in the given reaction? } $$
$$ \text { What is } X \text { in the following reaction sequence? } $$
In which of the following pairs reactant is correctly matched with reagent that would form benzaldehyde as product?
The product( $s$ ) formed when $m$-chlorobenzaldehyde is heated with concentrated NaOH is/are
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 statements.
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
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.
III. It undergoes Wolff-Kishner reduction.
IV, If forms red precipitate with Fehling's reagent.
$$ \text { The major product in the following transformation is } $$
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 option among the following is
$$ \text { Identify } X \text { and } Y \text { in the reactions, given below } $$
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
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 formula of $Q$ is
$$ \text { Match the following. } $$
| List-I | List-ii | ||
|---|---|---|---|
| (A) | Acid chloride to aldehyde | (I) | $$ \text { DIBAL-H } $$ |
| (B) | Benzene to benzaldehyde | (II) | $$ \mathrm{CO}, \mathrm{HCl} \text {, anhyd. } \mathrm{AlCl}_3 $$ |
| (C) | Acetylene to aldehyde | (III) | $$ \mathrm{HgSO}_4, \mathrm{H}_2 \mathrm{SO}_4 $$ |
| (D) | Ester to aldehyde | (IV) | $$ \mathrm{H}_2, \mathrm{Pd}-\mathrm{BaSO}_4 $$ |
In the following compounds, the ones that give positive iodoform test are
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 product $Q$ is
$$ \text { The major product in the following reactions is } $$
$$ \text { The major product of the following reaction is } $$
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
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 with silver powder gives ' $D$ '. The structures of ${ }^{\prime} A^{\prime}$ and ' $D^{\prime}$ are
$$ \text { What are } X \text { and } Y \text { in the following reaction sequence? } $$
The major product in the following reaction sequence is
Which of the following reactions gives carboxylate ion in their reaction mixture?
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 $C$ ?
The major products $P$ and $Q$ in the following reaction sequences are
$$ \text { Identify } X \text { in the following. } $$
