Aldehyde and Ketone · Chemistry · MHT CET
MCQ (Single Correct Answer)
Pent - 3 - enenitrile $\xrightarrow[\large{\text{H}_3\text{O}^+}]{\large{\text{Al H (i-Bu)}_2}}$ Product
$\text{C}_6\text{H}_5\text{COCl} \xrightarrow{\large{\text{R}}} \text{C}_6\text{H}_5\text{CHO} + \text{HCl}$
$\text{Isopropyl cyanide} \xrightarrow{\large{\text{SnCl}_2, \text{HCl}}} \text{A} \xrightarrow{\large{\text{H}_3\text{O}^+}} \text{B} + \text{NH}_4\text{Cl}$
Identify the reagent used for Rosenmund reduction.
Identify the reaction so that carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with Zinc-amalgam and concentrated hydrochloric acid.
Which of the following on reaction with Grignards reagent followed by hydrolysis forms tertiary alcohol?
Identify the product formed when Hex-3-enenitrile is reduced with diisobutylaluminium hydride followed by acid hydrolysis?
Identify the products of following reaction?
Formaldehyde + Benzaldehyde$\xrightarrow[\text { ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {i) conc. } \mathrm{NaOH}}$ Products
Which of the following does NOT exhibit haloform reaction?
Which of the following is used as reagent in Etard reaction?
Identify the name of reaction if carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with hydrazine followed by heating with sodium hydroxide in ethylene glycol.
Which of the following is structural formula of mesityl oxide?
Which among the following has lowest boiling point?
Which among the following compounds has highest boiling point?
Identify the reagent ' $R$ ' used in the following reaction.
Ketone $\xrightarrow{\mathrm{R}}$ Semicarbazone
Which among the following compounds forms pink colouration on addition of Schiff's reagent?
Identify the product ' B ' in following reaction.
Ethanal $\xrightarrow{\text { dil } \mathrm{NaOH}} A \xrightarrow[\mathrm{H}_2 \mathrm{O}]{\Delta} B$
Which from following compounds has highest boiling point?
Which from following reagents is used in Gatterman-Koch formylation of arene?
Benzonitrile on reduction with stannous chloride in presence of hydrochloric acid followed by acid hydrolysis forms,
Identify the product ' B ' in the following sequence of reactions.
Methyl magnesium bromide $\xrightarrow{\mathrm{CdCl}_2} \mathrm{~A}\xrightarrow{\mathrm{CH}_3 \mathrm{COCl}} \mathrm{~B}$
Identify the reagent $R$ used in following reaction.
Ketone $$\buildrel R \over \longrightarrow$$ semi carbazone
Formaldehyde + Benzaldehyde $$ \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\text {conc. } \mathrm{NOH}} \text { product }$$
Identify name of reaction when aldehyde or ketone react with $\mathrm{Zn}-\mathrm{Hg} /$ conc. HCl to give alkane.
Identify reactant 'A' in following reaction.
Which of the following is a simple ketone?
Aldol condensation reaction is
Identify the reagent ' R ' used in the following reaction.
Ketone $\xrightarrow{\mathbf{R}}$ Semicarbazone
Identify the product in following reaction. Pent -3-enenitrile $\xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{AlH}(\mathrm{B}-\mathrm{B})_2}$ product
Identify product 'B' in following reaction
Identify the product obtained when excess of benzoyl chloride is treated with dimethyl cadmium.
Identify an aldehyde used in margarine and in food for its buttery odour.
What type of following compounds is obtained in first step of Wolf-Kishner reduction of carbonyl compounds?
What is the product obtained in the reaction?
$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CHO} \xrightarrow[\text { (i) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{LAH}_4}$ product
Which of the following compounds is used to convert acetaldehyde into acetaldehyde cynanohydrin?
Identify the test from following so that aldehyde when boiled with ammoniacal silver nitrate solution deposts silver.
What is the general molecular formula of aldehydes?
Which of the following is Stephen reaction?
Which of the following compounds when treated with ammoniacal silver nitrate exhibits silver mirror test?
What type of product is obtained when formaldehyde reacts with $\mathrm{CH}_3 \mathrm{MgBr}$ in dry ether?
Identify the product ' B ' in the following sequence of reactions. Propanone $\xrightarrow{\mathrm{B_a}(\mathrm{OH})_2} A \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} B$
Identify the reagent ' R ' used in the following reaction. Benzoyl chloride $$ \to $$ Benzaldehyde
Which of the following compounds does not undergo haloform reaction?
Identify the product 'B' in the following reaction.
Ethylphenyl ketone $\xrightarrow{\mathrm{H}_2 \mathrm{~N}-\mathrm{NH}_2}$ A $\xrightarrow[\Delta]{\mathrm{KOH}, \mathrm{HO}\left(\mathrm{CH}_2\right)_2 \mathrm{OH}}$ B
Which of the following reactions represents Clemmensen reduction?
Identify the product ' B ' in the following sequence of reactions.
$$\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\mathrm{CdCl}_2} \mathrm{~A} \xrightarrow{\mathrm{CH}_3 \mathrm{COCl}_1} \mathrm{~B}$$
Identify the compound '$$\mathrm{A}$$' in the following sequence of reactions.
$$\text { A } \xrightarrow[\text { Dryether }]{\mathrm{C}_2 \mathrm{H}_3 \mathrm{MgBr}} \mathrm{B} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \text {3-Methylpentan-3-0l }$$
Which of the following is Clemmensen reduction?
Identify substrate 'A' in the following reaction.
2nA $$\mathrm{\buildrel {Dimethyl\,cadmium} \over \longrightarrow}$$ 2n Propanone + n Cadmium chloride
Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with hydrazine followed by heating with sodium hydroxide in ethylene glycol.
Identify the product '$$\mathrm{B}$$' in the following reaction. Toluene $$\xrightarrow[\mathrm{CS}_2]{\text { Chromylchloride }} \mathrm{A} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\mathrm{B}$$
Which among the following is a simple ketone?
Which from following compounds is obtained when toluene is treated with $$\mathrm{CrO}_2 \mathrm{Cl}_2$$ in presence of $$\mathrm{CS}_2$$ followed by acid hydrolysis?
Which of the following is NOT prepared by the action of Grignard's reagent on methanal?
Which following reagent is used in Etard reaction?
Which of the following compounds is obtained by Rosenmund reduction of benzoyl chloride?
Identify product '$$B$$' in following sequence of reactions.
2n Propanone $$\mathrm{\buildrel {Ba{{(OH)}_2}} \over \longrightarrow}$$ A $$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{ - {H_2}O}^\Delta }}$$ nB
Which of the following reactions is Rosenmund reduction?
What type of following phenomena does the Cannizzaro reaction exhibit?
Identify the reagent 'R' used in the following reaction.
Identify the products of following reaction:
Which of the following reagents is used in Gatterman-Koch formylation of arene?
Which among the following compounds is hemiacetal?
Which among the following colours is obtained in Schiff test of aldehydes?
Identify ketone from the following.
Which of the following on reaction with ammoniacal silver nitrate forms silver precipitate?
Identify the product 'B' in following reaction.
Ethyl phenyl ketone $$\mathrm{\buildrel {{H_2}N - N{H_2}} \over \longrightarrow}$$ A $$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_\Delta ^{KOH,HO - {{(C{H_2})}_2} - OH}}}$$
What type of reaction is the formation of aldol from aldehyde?
What is the product formed when cumene is air oxidised in presence of Co-naphthenate and further treated with dilute acid?
Identify compound $$\mathrm{A}$$ in following reaction
Benzene + Ozone (excess) $$\rightarrow$$ Benzenetriozonide $$\xrightarrow{\mathrm{A}}$$ Glyoxal
Which of the following aldehydes is less reactive towards nucleophilic addition reaction?
Cannizzaro reaction is an example of
Which of the following reaction is an example of Rosenmund reduction?
To obtain 3-methylbutan-2-ol from acetaldehyde, the Grignard's reagent used is
Which of the following aldehyde has buttery odour?
Identify product B in following reaction.
Propanone $$\xrightarrow{\mathrm{Ba}(\mathrm{OH})_2} \mathrm{~A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}$$
Identify compound A from following reaction.
$$\mathrm{A}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr} \xrightarrow[\text { ety }]{\text { drer }} \mathrm{B} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \text {3-methylpentan-3-ol }$$
Identify product $$\mathrm{C}$$ in following conversion.
m - Hydroxy Benzaldehyde $$ \xrightarrow[\text { [Protection of }-\mathrm{OH} \text { group] }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Cl}} $$ $$ \mathrm{A} \xrightarrow{[\mathrm{O}]} \mathrm{B} $$ $$ \xrightarrow[\text { [deprotection of }-\mathrm{OH} \text { group] }]{} $$ C
Identify the reagent used in following conversion.
Pent -3 -enenitrile $$\xrightarrow{\mathrm{A}}$$ pent -3 -enal
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at $$373 \mathrm{~K}$$ ?
Identify the product '$$B$$' in following reaction.
$$2 \mathrm{CH}_3 \mathrm{CHO} \xrightarrow{\text { dil. } \mathrm{NaOH}} \mathrm{A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}$$
Identify 'A' in following reaction.
A $$\mathrm{\buildrel {Dimethyl\,cadmium} \over \longrightarrow}$$ propanone + cadmium chloride
Which of the following reagents is used in the reaction shown below?
Benzoyl chloride $$\stackrel{?}{\longrightarrow}$$ Benzaldehyde
Identify the name of following reaction.
Toluene + chromyl chloride $$\stackrel{\mathrm{CS}_2}{\longrightarrow}$$ complex $$\stackrel{\mathrm{H}_3 \mathrm{O}^{+}}{\longrightarrow}$$ Benzaldehyde
Identify the product formed when benzoyl chloride is reduced by hydrogen using palladium catalyst poisoned with barium sulphate?
Identify the reagent used in following conversion.
Which from following reactions converts carbonyl group of aldehydes and ketones to methylene group on treatment with zinc amalgam and concentrated $$\mathrm{HCl}$$ ?
Which among the following compounds has highest boiling point?
Identify the product formed in the following reaction,
$$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CHO} \mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(ii)\,{H_2}{O^ + }}^{(i)\,LiAl{H_4}}}} \text {Products }$$
When alcoholic solution of an organic compound is treated with few drops of Schiff's reagent, pink colour appears. This confirms the presence of group
Which of the following compounds on reaction with Grignard reagent followed by hydrolysis forms secondary alcohol?
The reagent used in Gatterman-Koch formylation of arene is
Which of the following compounds on reaction with ammonical silver nitrate solution forms precipitate of silver?
Identify $A$ in the following reaction.
$$A+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \text { complex }\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}$$
Which of the following is a Stephen reaction?
Which of the following compound is highly reactive towards HCN?
Which of the following compounds reacts with ammonia to form urotropine?
Number of oxygen atoms present in salicylaldehyde are
An acylchloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as
Propane nitrile on reaction with ethyl magnesium iodide in presence of dry ether gives complex. This imine complex on acid hydrolysis forms
Which of the following alcohols needs acidic $$\mathrm{KMnO}_4$$ to convert it into aldehyde or ketone?
Which of the following statements is true for carbonyl group?
Which of the following does not give yellow solid on treatment with sodium hypoiodite?
Mandelonitrile is obtained by the reaction between hydrogen cyanide and
In the reaction, $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCH}_3 \xrightarrow[\mathrm{Zn}-\mathrm{Hg} / \text { conc. } \mathrm{HCl}]{[\mathrm{H}]} X,X$ is