11242 + Mcqs in Chemistry Page 34 McqOptions

1651.	Which gives lactic acid on hydrolysis after reacting with HCN [UPSEAT 2003; MP PMT 2003]
A.	\[HCHO\]
B.	\[C{{H}_{3}}CHO\]
C.	\[{{C}_{6}}{{H}_{5}}CHO\]
D.	\[C{{H}_{3}}COC{{H}_{3}}\]
Answer» C. \[{{C}_{6}}{{H}_{5}}CHO\]

Discussion

1652.	\[C{{H}_{3}}CHO+C{{H}_{3}}MgBr\to \text{Product}\xrightarrow{{{H}_{2}}O}A\] What is A? [RPMT 1997]
A.	Primary alcohol
B.	Secondary alcohol
C.	Tertiary alcohol
D.	Ketone
Answer» C. Tertiary alcohol

Discussion

1653.	Which compound is soluble in \[{{H}_{2}}O\] [RPMT 1997]
A.	HCHO
B.	\[C{{H}_{3}}CHO\]
C.	\[C{{H}_{3}}COC{{H}_{3}}\]
D.	All
Answer» E.

Discussion

1654.	Consider the following statement Acetophenone can be prepared by (1) Oxidation of 1-phenylethanol (2) Reaction of benzalthanol with methyl magnesium bromide (3) Friedel craft?s reaction of benzene with acetyl chloride (4) Distillation of calcium benzoate [SCRA 2001]
A.	1 and 2
B.	1 and 4
C.	1 and 3
D.	3 and 4
Answer» D. 3 and 4

Discussion

1655.	Which of the following does not give brick red precipitate with Fehling solution [AIIMS 1996]
A.	Acetone
B.	Acetaldehyde
C.	Formalin
D.	D-glucose
Answer» B. Acetaldehyde

Discussion

1656.	Identify the organic compound which, on heating with strong solution of \[NaOH\], partly converted into an acid salt and partly into alcohol [KCET 2003]
A.	Benzyl alcohol
B.	Acetaldehyde
C.	Acetone
D.	Benzaldehyde
Answer» E.

Discussion

1657.	Aldehydes and ketones can be reduced to hydrocarbon by using [Orissa JEE 2003]
A.	\[LiAl{{H}_{4}}\]
B.	\[{{H}_{2}}/Pd-BaS{{O}_{4}}\]
C.	\[Na-Hg/HCl\]
D.	\[N{{H}_{2}}-N{{H}_{2}}/{{C}_{2}}{{H}_{5}}ONa\]
Answer» E.

Discussion

1658.	Benzaldehyde on reaction with acetophenone in the presence of sodium hydroxide solution gives [BVP 2003]
A.	\[{{C}_{6}}{{H}_{5}}CH=CHCO{{C}_{6}}{{H}_{5}}\]
B.	\[{{C}_{6}}{{H}_{5}}COC{{H}_{2}}{{C}_{6}}{{H}_{5}}\]
C.	\[{{C}_{6}}{{H}_{5}}CH=CH{{C}_{6}}{{H}_{5}}\]
D.	\[{{C}_{6}}{{H}_{5}}CH(OH)CO{{C}_{6}}{{H}_{5}}\]
Answer» B. \[{{C}_{6}}{{H}_{5}}COC{{H}_{2}}{{C}_{6}}{{H}_{5}}\]

Discussion

1659.	Reaction \[\begin{matrix} R \\ R \\ \end{matrix}>CO+HCN\to R-\underset{\underset{CN}{\mathop{\|}}\,}{\mathop{\overset{\overset{R}{\mathop{\|}}\,}{\mathop{C}}\,}}\,-OH\] is [Kurukshetra CEE 1998; IIT 1990]
A.	Electrophilic substitution
B.	Electrophilic addition
C.	Nucleophilic addition
D.	Nucleophilic substitution
Answer» D. Nucleophilic substitution

Discussion

1660.	When two molecules of acetaldehyde condense in the presence of dilute alkali, it forms [Bihar MEE 1996]
A.	Acetal
B.	Sodium formate
C.	Aldol
D.	Mesitylene
E.	None of these
Answer» D. Mesitylene

Discussion

1661.	The reaction \[{{C}_{6}}{{H}_{5}}CHO+C{{H}_{3}}CHO\to {{C}_{6}}{{H}_{5}}CH=CH-CHO\] is known as [BHU 1996]
A.	Perkin's reaction
B.	Claisen condensation
C.	Benzoin condensation
D.	Cannizzaro's reaction
Answer» C. Benzoin condensation

Discussion

1662.	Which of the following is incorrect [CBSE PMT 2001]
A.	\[FeC{{l}_{3}}\] is used in the detection of phenols
B.	Fehling solution is used in the detection of glucose
C.	Tollen's reagent is used in detection of unsaturation
D.	\[NaHS{{O}_{3}}\] is used in the detection of carbonyl compounds
Answer» D. \[NaHS{{O}_{3}}\] is used in the detection of carbonyl compounds

Discussion

1663.	Cannizzaro reaction is given by [DPMT 1996]
A.	HCHO
B.	\[C{{H}_{3}}COC{{H}_{3}}\]
C.	\[C{{H}_{3}}CHO\]
D.	\[C{{H}_{3}}C{{H}_{2}}OH\]
Answer» B. \[C{{H}_{3}}COC{{H}_{3}}\]

Discussion

1664.	During reaction of benzaldehyde with alkali one of the product is
A.	Phenol
B.	Benzyl alcohol
C.	Benzene
D.	Benzophenone
Answer» C. Benzene

Discussion

1665.	Which one of the following reacts with HCN and Tollen's reagent, but is not oxidised by Fehling's solution
A.	Methanal
B.	Ethanal
C.	Benzaldehyde
D.	Acetone
Answer» D. Acetone

Discussion

1666.	Enol content is highest in [Orissa JEE 2005]
A.	Acetone
B.	Acetophenone
C.	Acetic acid
D.	Acetyl acetone
Answer» E.

Discussion

1667.	Aldol condensation involving \[C{{H}_{3}}CHO+C{{H}_{3}}CHO\] gives the product [DPMT 1996]
A.	\[C{{H}_{3}}CHOHC{{H}_{2}}CHO\]
B.	\[C{{H}_{3}}COC{{H}_{2}}C{{H}_{3}}\]
C.	\[C{{H}_{3}}CH=C{{H}_{2}}\]
D.	None of these
Answer» B. \[C{{H}_{3}}COC{{H}_{2}}C{{H}_{3}}\]

Discussion

1668.	Clemmenson reduction involves \[>C=O\] to \[>C{{H}_{2}}\] in presence of [DPMT 1996]
A.	Zn / Hg
B.	Alcohol
C.	Zn dust
D.	Zn / alcohol
Answer» B. Alcohol

Discussion

1669.	Which one of the following reactions is a method for the conversion of a ketone into a hydrocarbon [MP PET/PMT 1998; CBSE PMT 1989]
A.	Aldol condensation
B.	Reimer-Tiemann reaction
C.	Cannizzaro reaction
D.	Wolf-Kishner reduction
Answer» E.

Discussion

1670.	The reaction in which sodium cyanide is used [MP PET/PMT 1998]
A.	Perkin reaction
B.	Reimer-Tiemann reaction
C.	Benzoin condensation
D.	Rosenmund reaction
Answer» D. Rosenmund reaction

Discussion

1671.	Contents of three bottles were found to react (i) Neither with Fehling's solution nor with Tollen's reagent (ii) Only with Tollen's reagent but not with Fehling's solution (iii) With both Tollen's reagent and Fehling's solution. If they contained either ethanal (acetaldehyde) or propanone (acetone) or benzal (benzaldehyde), which bottle contained which
A.	In (i) benzal, in (ii) ethanal and in (iii) propanone
B.	In (i) benzal, in (ii) propanone and in (iii) ethanal
C.	In (i) propanone, in (ii) benzal and in (iii) ethanol
D.	In (i) propanone, in (ii) ethanal and in (iii) benzal
Answer» D. In (i) propanone, in (ii) ethanal and in (iii) benzal

Discussion

1672.	Aldol condensation will not take place in [CBSE PMT 1996, 99; RPMT 1999; CPMT 1988, 04]
A.	HCHO
B.	\[C{{H}_{3}}C{{H}_{2}}CHO\]
C.	\[C{{H}_{3}}CHO\]
D.	\[C{{H}_{3}}COC{{H}_{3}}\]
Answer» B. \[C{{H}_{3}}C{{H}_{2}}CHO\]

Discussion

1673.	The reaction, \[C{{H}_{3}}-\overset{\overset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-OC{{H}_{3}}+{{C}_{2}}{{H}_{5}}OH\xrightarrow{{{H}^{+}}\ or\ O{{H}^{-}}}\] \[C{{H}_{3}}-\overset{\overset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-O{{C}_{2}}{{H}_{5}}+\ C{{H}_{3}}OH\] is called [MP PMT 2003]
A.	Perkin's reaction
B.	Claisen Schmidt reaction
C.	Esterification
D.	Trans-esterification
Answer» E.

Discussion

1674.	Formaldehyde reacts with ammonia to give urotropine. The formula of urotropine is [MP PMT 1989, 96, 2003; AIIMS 1982; NCERT 1987; MP PET 1990, 91, 2000; CPMT 1978, 82, 86, 97; KCET 2003]
A.	\[{{(C{{H}_{2}})}_{6}}{{N}_{4}}\]
B.	\[{{(C{{H}_{2}})}_{4}}{{N}_{3}}\]
C.	\[{{(C{{H}_{2}})}_{6}}{{N}_{6}}\]
D.	\[{{(C{{H}_{2}})}_{3}}{{N}_{3}}\]
Answer» B. \[{{(C{{H}_{2}})}_{4}}{{N}_{3}}\]

Discussion

1675.	Cinnamic acid is formed when \[{{C}_{6}}{{H}_{5}}-CHO\] condenses with \[{{(C{{H}_{3}}CO)}_{2}}O\] in presence of [Orissa JEE 2003]
A.	Conc. \[{{H}_{2}}S{{O}_{4}}\]
B.	Sodium acetate
C.	Sodium metal
D.	Anhydrous \[ZnC{{l}_{2}}\]
Answer» C. Sodium metal

Discussion

1676.	\[2C{{H}_{3}}-\underset{\underset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-C{{H}_{3}}\underset{{{H}^{+}}}{\mathop{\xrightarrow{Mg/Hg}}}\,\] Product, product in the reaction is [RPMT 2003]
A.	\[{{H}_{3}}C\ \ -\overset{\overset{C{{H}_{3}}}{\mathop{\|\ \ \ \ \,\,}}\,}{\mathop{\underset{\underset{OH}{\mathop{\ \|\ \,\ \ \ }}\,\ }{\mathop{C\ -}}\,}}\,\overset{\overset{C{{H}_{3}}}{\mathop{\|\,\,\,\ \ \ \ \ }}\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{\underset{OH\,\,}{\mathop{\|\,\,\,\ \ \ \ }}\,}{\mathop{C-C}}\,{{H}_{3}}}}\,\]
B.	\[C{{H}_{3}}-\underset{\underset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-O-\underset{\underset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-C{{H}_{3}}\]
C.	\[C{{H}_{3}}-\underset{\underset{OH}{\mathop{\|\ \ \ }}\,}{\mathop{CH}}\,-\underset{\underset{OH}{\mathop{\|\ \ \ }}\,}{\mathop{CH}}\,-C{{H}_{3}}\]
D.	None of these
Answer» B. \[C{{H}_{3}}-\underset{\underset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-O-\underset{\underset{O}{\mathop{\|\|}}\,}{\mathop{C}}\,-C{{H}_{3}}\]

Discussion

1677.	Which of the following compound is resistant to nucleophilic attack by hydroxyl ions [CBSE PMT 1998; KCET (Med.) 2001; AFMC 2001]
A.	Methyl acetate
B.	Acetonitrile
C.	Dimethyl ether
D.	Acetamide
Answer» D. Acetamide

Discussion

1678.	Glucose molecule reacts with X number of molecules of phenylhydrazine to yield osazone. The value of X is [CBSE PMT 1998]
A.	One
B.	Two
C.	Three
D.	Four
Answer» C. Three

Discussion

1679.	For \[{{C}_{6}}{{H}_{5}}CHO\] which of the following is incorrect [CPMT 1985]
A.	On oxidation it yields benzoic acid
B.	It is used in perfumery
C.	It is an aromatic aldehyde
D.	On reduction yields phenol
Answer» E.

Discussion

1680.	The product formed by the reaction of chlorine with benzaldehyde in the absence of a catalyst is [Tamil Nadu CET 2002]
A.	Chlorobenzene
B.	Benzyl chloride
C.	Benzoyl Chloride
D.	o-Chlorobenzaldehyde
Answer» D. o-Chlorobenzaldehyde

Discussion

1681.	Which of the following reagents is used to distinguish acetone and acetophenone [RPMT 2002; KCET 1998]
A.	\[NaHS{{O}_{3}}\]
B.	Grignard reagent
C.	\[N{{a}_{2}}S{{O}_{4}}\]
D.	\[N{{H}_{4}}Cl\]
Answer» B. Grignard reagent

Discussion

1682.	The addition of \[HCN\] to carbonyl compounds is an example of [Haryana CEET 2000]
A.	Nucleophilic substitution
B.	Electrophilic addition
C.	Nucleophilic addition
D.	Electrophilic substitution
Answer» D. Electrophilic substitution

Discussion

1683.	Which will not give acetamide on reaction with ammonia [CPMT 1985]
A.	Acetic acid
B.	Acetyl chloride
C.	Acetic anhydride
D.	Methyl formate
Answer» E.

Discussion

1684.	The typical reactions of aldehyde is [Pb. CET 1986]
A.	Electrophilic addition
B.	Nucleophilic substitution
C.	Nucleophilic addition
D.	Nucleophilic elimination
Answer» D. Nucleophilic elimination

Discussion

1685.	Acetaldehyde reacts with [CBSE PMT 1991]
A.	Electrophiles only
B.	Nucleophiles only
C.	Free radicals only
D.	Both electrophiles and nucleophiles
Answer» C. Free radicals only

Discussion

1686.	Aldehydes and ketones give addition reaction with [KCET 1992]
A.	Hydrazine
B.	Phenyl hydrazine
C.	Semicarbazide
D.	Hydrogen cyanide
E.	All of these
Answer» E. All of these

Discussion

1687.	The final product formed when acetaldehyde is reduced with sodium and alcohol is [BHU 1976]
A.	Ethylene
B.	Ethyl alcohol
C.	Ethene
D.	All of these
Answer» C. Ethene

Discussion

1688.	Formaldehyde when treated with KOH gives methanol and potassium formate. The reaction is known as [MP PET 1997]
A.	Perkin reaction
B.	Claisen reaction
C.	Cannizzaro reaction
D.	Knoevenagel reaction
Answer» D. Knoevenagel reaction

Discussion

1689.	Reduction of \[>C=O\] to \[C{{H}_{2}}\] can be carried out with [DCE 2000]
A.	Catalytic reduction
B.	\[Na/{{C}_{2}}{{H}_{5}}OH\]
C.	Wolf-Kischner reduction
D.	\[LiAl{{H}_{4}}\]
Answer» D. \[LiAl{{H}_{4}}\]

Discussion

1690.	Acetaldehyde and acetone differ in their reaction with [KCET 1989]
A.	Sodium bisulphite
B.	Ammonia
C.	Phosphorus pentachloride
D.	Phenyl hydrazine
Answer» C. Phosphorus pentachloride

Discussion

1691.	Fehling's test is positive for [KCET 1993]
A.	Acetaldehyde
B.	Benzaldehyde
C.	Ether
D.	Alcohol
Answer» B. Benzaldehyde

Discussion

1692.	Which of the following does not turn Schiff's reagent to pink [DPMT 1981; CPMT 1989]
A.	Formaldehyde
B.	Benzaldehyde
C.	Acetone
D.	Acetaldehyde
Answer» D. Acetaldehyde

Discussion

1693.	\[C{{H}_{3}}CH=CHCHO\] is oxidised to \[C{{H}_{3}}CH=CHCOOH\] using [NCERT 1978]
A.	Alkaline \[KMn{{O}_{4}}\]
B.	Selenium dioxide
C.	Ammoniacal \[AgN{{O}_{3}}\]
D.	All of these
Answer» D. All of these

Discussion

1694.	Silver mirror is a test for [DPMT 1983; CBSE PMT 1988]
A.	Aldehydes
B.	Thio alcohols
C.	Amines
D.	Ethers
Answer» B. Thio alcohols

Discussion

1695.	Aldehydes can be oxidised by [NCERT 1983]
A.	Tollen's reagent
B.	Fehling solution
C.	Benedict solution
D.	All of these
Answer» E.

Discussion

1696.	Correct order of reactivity of \[C{{H}_{3}}CHO,\,{{C}_{2}}{{H}_{5}}COC{{H}_{3}}\] and \[C{{H}_{3}}COC{{H}_{3}}\] is [MP PMT 1991]
A.	\[C{{H}_{3}}CHO>C{{H}_{3}}COC{{H}_{3}}>C{{H}_{3}}CO{{C}_{2}}{{H}_{5}}\]
B.	\[{{C}_{2}}{{H}_{5}}COC{{H}_{3}}>C{{H}_{3}}COC{{H}_{3}}>C{{H}_{3}}CHO\]
C.	\[C{{H}_{3}}COC{{H}_{3}}>C{{H}_{3}}CHO>{{C}_{2}}{{H}_{5}}COC{{H}_{3}}\]
D.	\[C{{H}_{3}}COC{{H}_{3}}>{{C}_{2}}{{H}_{5}}COC{{H}_{3}}>C{{H}_{3}}CHO\]
Answer» B. \[{{C}_{2}}{{H}_{5}}COC{{H}_{3}}>C{{H}_{3}}COC{{H}_{3}}>C{{H}_{3}}CHO\]

Discussion

1697.	The alkaline \[CuS{{O}_{4}}\] containing sodium potassium tartrate does not react with [MP PMT 1997]
A.	\[C{{H}_{3}}CHO\]
B.	\[{{C}_{2}}{{H}_{5}}CHO\]
C.	\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHO\]
D.	\[{{C}_{6}}{{H}_{5}}CHO\]
Answer» E.

Discussion

1698.	Which of the following does not give yellow precipitate with \[NaOH+KI\] [MP PMT 1997]
A.	Acetone
B.	Acetaldehyde
C.	Benzaldehyde
D.	Acetophenone
Answer» D. Acetophenone

Discussion

1699.	Reduction of Aldehydes and Ketones to hydrocarbon take place in the presence of [CPMT 2003]
A.	Zn amalgam and HCl acid
B.	\[Pd/BaS{{O}_{4}}\]
C.	Anhydrous \[AlC{{l}_{3}}\]
D.	Ni/Pt
Answer» B. \[Pd/BaS{{O}_{4}}\]

Discussion

1700.	m-chlorobenzaldehyde on reaction with conc. KOH at room temperature gives [IIT-JEE 1991]
A.	Potassium m-chlorobenzoate and m-hydroxy benzaldehyde
B.	m-hydroxy benzaldehyde and m-chlorobenzyl alcohol
C.	m-chlorobenzyl alcohol and m-hydroxy benzyl alcohol
D.	Potassium m-chlorobenzoate and m-chlorobenzyl alcohol
Answer» E.

Discussion

Explore topic-wise MCQs in Joint Entrance Exam - Main (JEE Main).

Which gives lactic acid on hydrolysis after reacting with HCN [UPSEAT 2003; MP PMT 2003]

\[C{{H}_{3}}CHO+C{{H}_{3}}MgBr\to \text{Product}\xrightarrow{{{H}_{2}}O}A\] What is A? [RPMT 1997]

Which compound is soluble in \[{{H}_{2}}O\] [RPMT 1997]

Consider the following statement Acetophenone can be prepared by (1) Oxidation of 1-phenylethanol (2) Reaction of benzalthanol with methyl magnesium bromide (3) Friedel craft?s reaction of benzene with acetyl chloride (4) Distillation of calcium benzoate [SCRA 2001]

Which of the following does not give brick red precipitate with Fehling solution [AIIMS 1996]

Identify the organic compound which, on heating with strong solution of \[NaOH\], partly converted into an acid salt and partly into alcohol [KCET 2003]

Aldehydes and ketones can be reduced to hydrocarbon by using [Orissa JEE 2003]

Benzaldehyde on reaction with acetophenone in the presence of sodium hydroxide solution gives [BVP 2003]

Reaction \[\begin{matrix} R \\ R \\ \end{matrix}>CO+HCN\to R-\underset{\underset{CN}{\mathop{|}}\,}{\mathop{\overset{\overset{R}{\mathop{|}}\,}{\mathop{C}}\,}}\,-OH\] is [Kurukshetra CEE 1998; IIT 1990]

When two molecules of acetaldehyde condense in the presence of dilute alkali, it forms [Bihar MEE 1996]

The reaction \[{{C}_{6}}{{H}_{5}}CHO+C{{H}_{3}}CHO\to {{C}_{6}}{{H}_{5}}CH=CH-CHO\] is known as [BHU 1996]

Which of the following is incorrect [CBSE PMT 2001]

Cannizzaro reaction is given by [DPMT 1996]

During reaction of benzaldehyde with alkali one of the product is

Which one of the following reacts with HCN and Tollen's reagent, but is not oxidised by Fehling's solution

Enol content is highest in [Orissa JEE 2005]

Aldol condensation involving \[C{{H}_{3}}CHO+C{{H}_{3}}CHO\] gives the product [DPMT 1996]

Clemmenson reduction involves \[>C=O\] to \[>C{{H}_{2}}\] in presence of [DPMT 1996]

Which one of the following reactions is a method for the conversion of a ketone into a hydrocarbon [MP PET/PMT 1998; CBSE PMT 1989]

The reaction in which sodium cyanide is used [MP PET/PMT 1998]

Aldol condensation will not take place in [CBSE PMT 1996, 99; RPMT 1999; CPMT 1988, 04]

The reaction, \[C{{H}_{3}}-\overset{\overset{O}{\mathop{||}}\,}{\mathop{C}}\,-OC{{H}_{3}}+{{C}_{2}}{{H}_{5}}OH\xrightarrow{{{H}^{+}}\ or\ O{{H}^{-}}}\] \[C{{H}_{3}}-\overset{\overset{O}{\mathop{||}}\,}{\mathop{C}}\,-O{{C}_{2}}{{H}_{5}}+\ C{{H}_{3}}OH\] is called [MP PMT 2003]

Formaldehyde reacts with ammonia to give urotropine. The formula of urotropine is [MP PMT 1989, 96, 2003; AIIMS 1982; NCERT 1987; MP PET 1990, 91, 2000; CPMT 1978, 82, 86, 97; KCET 2003]

Cinnamic acid is formed when \[{{C}_{6}}{{H}_{5}}-CHO\] condenses with \[{{(C{{H}_{3}}CO)}_{2}}O\] in presence of [Orissa JEE 2003]

\[2C{{H}_{3}}-\underset{\underset{O}{\mathop{||}}\,}{\mathop{C}}\,-C{{H}_{3}}\underset{{{H}^{+}}}{\mathop{\xrightarrow{Mg/Hg}}}\,\] Product, product in the reaction is [RPMT 2003]

Which of the following compound is resistant to nucleophilic attack by hydroxyl ions [CBSE PMT 1998; KCET (Med.) 2001; AFMC 2001]

Glucose molecule reacts with X number of molecules of phenylhydrazine to yield osazone. The value of X is [CBSE PMT 1998]

For \[{{C}_{6}}{{H}_{5}}CHO\] which of the following is incorrect [CPMT 1985]

The product formed by the reaction of chlorine with benzaldehyde in the absence of a catalyst is [Tamil Nadu CET 2002]

Which of the following reagents is used to distinguish acetone and acetophenone [RPMT 2002; KCET 1998]

The addition of \[HCN\] to carbonyl compounds is an example of [Haryana CEET 2000]

Which will not give acetamide on reaction with ammonia [CPMT 1985]

The typical reactions of aldehyde is [Pb. CET 1986]

Acetaldehyde reacts with [CBSE PMT 1991]

Aldehydes and ketones give addition reaction with [KCET 1992]

The final product formed when acetaldehyde is reduced with sodium and alcohol is [BHU 1976]

Formaldehyde when treated with KOH gives methanol and potassium formate. The reaction is known as [MP PET 1997]

Reduction of \[>C=O\] to \[C{{H}_{2}}\] can be carried out with [DCE 2000]

Acetaldehyde and acetone differ in their reaction with [KCET 1989]

Fehling's test is positive for [KCET 1993]

Which of the following does not turn Schiff's reagent to pink [DPMT 1981; CPMT 1989]

\[C{{H}_{3}}CH=CHCHO\] is oxidised to \[C{{H}_{3}}CH=CHCOOH\] using [NCERT 1978]

Silver mirror is a test for [DPMT 1983; CBSE PMT 1988]

Aldehydes can be oxidised by [NCERT 1983]

Correct order of reactivity of \[C{{H}_{3}}CHO,\,{{C}_{2}}{{H}_{5}}COC{{H}_{3}}\] and \[C{{H}_{3}}COC{{H}_{3}}\] is [MP PMT 1991]

The alkaline \[CuS{{O}_{4}}\] containing sodium potassium tartrate does not react with [MP PMT 1997]

Which of the following does not give yellow precipitate with \[NaOH+KI\] [MP PMT 1997]

Reduction of Aldehydes and Ketones to hydrocarbon take place in the presence of [CPMT 2003]

m-chlorobenzaldehyde on reaction with conc. KOH at room temperature gives [IIT-JEE 1991]