11242 + Mcqs in Chemistry Page 37 McqOptions

1801.	The compound A with following sequence of reaction gave benzoic acid \[A\xrightarrow{NaN{{O}_{2}}/HCl}B\xrightarrow{KCN}C\xrightarrow{{{H}_{3}}{{O}^{+}}}\] benzoic acid. The compound A is [AMU 2001]
A.	Nitrobenzene
B.	Aniline
C.	Benzaldehyde
D.	Amides
Answer» C. Benzaldehyde

Discussion

1802.	Which of the following chemicals are used to manufacture methyl isocyanate that caused ?Bhopal Tragedy? (i) Methylamine (ii) Phosgene (iii) Phosphine (iv) Dimethylamine [AIIMS 2005]
A.	(i) and (iii)
B.	(iii) and (iv)
C.	(i) and (ii)
D.	(ii) and (iv)
Answer» D. (ii) and (iv)

Discussion

1803.	Alkyl cyanides when react with Grignard reagent, the product on hydrolysis found, is [MP PMT 1980]
A.	Aldehyde
B.	Ketone
C.	Alcohol
D.	Acid
Answer» C. Alcohol

Discussion

1804.	Nitrobenzene on further excessive nitration gives [AFMC 2001]
A.	Trinitrobenzene
B.	m-dinitrobenzene
C.	p-dinitrobenzene
D.	All of these
Answer» C. p-dinitrobenzene

Discussion

1805.	Among the following, the strongest base is [UPSEAT 2000; IIT-JEE (Screening) 2000]
A.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
B.	\[p-N{{O}_{2}}{{C}_{6}}{{H}_{4}}N{{H}_{2}}\]
C.	\[m-N{{O}_{2}}-{{C}_{6}}{{H}_{4}}N{{H}_{2}}\]
D.	\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}N{{H}_{2}}\]
Answer» E.

Discussion

1806.	Aniline and methyl amine can be differentiated by [DPMT 2000]
A.	Reaction with chloroform and aqueous solution of KOH
B.	Diazotisation followed by coupling with phenol
C.	Reaction with \[HN{{O}_{2}}\]
D.	None of these
Answer» C. Reaction with \[HN{{O}_{2}}\]

Discussion

1807.	Decreasing order of basicity is [RPET 2000] (1) \[C{{H}_{3}}CON{{H}_{2}}\] (2) \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\] (3) Ph?\[C{{H}_{2}}CON{{H}_{2}}\]
A.	1 > 2 > 3
B.	2 > 1 > 3
C.	3 > 2 > 1
D.	None of these
Answer» C. 3 > 2 > 1

Discussion

1808.	\[RCOCl+2M{{e}_{2}}NH\to A+M{{e}_{2}}\overset{+\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{N{{H}_{2}}C{{l}^{-}}}}\,\]Here A is [RPET 2000]
A.
B.	\[RCON{{H}_{2}}\]
C.	\[RCONHMe\]
D.	\[{{(RCO)}_{2}}NH\]
Answer» B. \[RCON{{H}_{2}}\]

Discussion

1809.	\[C{{H}_{3}}CN\] is known as acetonitrile because [AMU 1999]
A.	It contains an aceto group
B.	On hydrolysis it gives acetic acid
C.	Both A and B
D.	None of these
Answer» C. Both A and B

Discussion

1810.	In the reaction \[C{{H}_{3}}CN+C{{H}_{3}}MgI\to A\xrightarrow{{{H}_{2}}O/{{H}^{+}}}B\] The compound B is [KCET 1999]
A.	Acetic acid
B.	Acetone
C.	Acetaldehyde
D.	Ethyl alcohol
Answer» C. Acetaldehyde

Discussion

1811.	Nitrosobenzene can be isolated from nitrobenzene under [DPMT 1982]
A.	Metal and acid
B.	Zn dust and \[N{{H}_{4}}Cl\]
C.	Alkaline sodium arsenite
D.	Cannot be isolated
Answer» E.

Discussion

1812.	A primary amine can be converted to an alcohol by the action of [CET Pune 1998]
A.	Alkali
B.	Nitrous acid
C.	Reducing agent
D.	Oxidizing agent
Answer» C. Reducing agent

Discussion

1813.	In the diazotisation of aniline with sodium nitrite and hydrochloric acid, an excess of hydrochloric acid is used primarily to [Pb. PMT 1998]
A.	Suppress the concentration of free aniline available for coupling
B.	Suppress hydrolysis of phenol
C.	Insure a stoichiometric amount of nitrous acid
D.	Neutralize the base liberated
Answer» B. Suppress hydrolysis of phenol

Discussion

1814.	Which one is less alkaline [CPMT 1997]
A.
B.
C.
D.	All of these
Answer» B.

Discussion

1815.	The major product (70% to 80%) of the reaction between m-dinitrobenzene with \[N{{H}_{4}}HS\] is [AIIMS 1997]
A.
B.
C.
D.
Answer» C.

Discussion

1816.	If methyl is alkyl group, then which order of basicity is correct [RPMT 1997]
A.	\[{{R}_{2}}NH>RN{{H}_{2}}>{{R}_{3}}N>N{{H}_{3}}\]
B.	\[{{R}_{2}}NH>{{R}_{3}}N>RN{{H}_{2}}>N{{H}_{3}}\]
C.	\[RN{{H}_{2}}>N{{H}_{3}}>{{R}_{2}}NH>{{R}_{3}}N\]
D.	\[N{{H}_{3}}>RN{{H}_{2}}>{{R}_{2}}NH>{{R}_{3}}N\]
Answer» B. \[{{R}_{2}}NH>{{R}_{3}}N>RN{{H}_{2}}>N{{H}_{3}}\]

Discussion

1817.	p-Nitrobromobenzene can be converted to p-nitroaniline by using \[NaN{{H}_{2}}\]. The reaction proceeds through the intermediate named [Orissa JEE 2005]
A.	Carbocation
B.	Carbanion
C.	Benzyne
D.	Dianion
Answer» D. Dianion

Discussion

1818.	Which one of the following is not a base [EAMCET 1997]
A.	\[{{N}_{2}}{{H}_{4}}\]
B.	\[N{{H}_{2}}OH\]
C.	\[{{(C{{H}_{3}})}_{3}}N\]
D.	\[H{{N}_{3}}\]
Answer» E.

Discussion

1819.	Aniline when treated with conc. \[HN{{O}_{3}}\] gives [KCET 1996]
A.
B.
C.
D.
Answer» D.

Discussion

1820.	Aniline when treated with \[HN{{O}_{2}}\] and HCl at \[{{0}^{o}}C\] gives [CPMT 1982, 89; RPMT 2000]
A.	Phenol
B.	Nitrobenzene
C.	A diazo compound
D.	None of these
Answer» D. None of these

Discussion

1821.	In the reduction of nitrobenzene, which of the following is the intermediate [CPMT 1999]
A.	\[{{C}_{6}}{{H}_{5}}N=O\]
B.	\[{{C}_{6}}{{H}_{5}}NH-NH-{{C}_{6}}{{H}_{5}}\]
C.	\[{{C}_{6}}{{H}_{5}}-N=N-{{C}_{6}}{{H}_{5}}\]
D.	\[{{C}_{6}}{{H}_{5}}N=\overset{O}{\mathop{\overset{\uparrow }{\mathop{N}}\,}}\,-{{C}_{6}}{{H}_{5}}\]
Answer» B. \[{{C}_{6}}{{H}_{5}}NH-NH-{{C}_{6}}{{H}_{5}}\]

Discussion

1822.	Which of the following compounds does not react with \[NaN{{O}_{2}}\] and HCl [KCET 1996]
A.	\[{{C}_{6}}{{H}_{5}}OH\]
B.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
C.	\[{{(C{{H}_{3}})}_{3}}CN{{O}_{2}}\]
D.	\[{{(C{{H}_{3}})}_{3}}CHN{{O}_{2}}\]
Answer» D. \[{{(C{{H}_{3}})}_{3}}CHN{{O}_{2}}\]

Discussion

1823.	Which of the following is most basic [MP PMT 1999]
A.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
B.	\[{{(C{{H}_{3}})}_{2}}NH\]
C.	\[{{(C{{H}_{3}})}_{3}}N\]
D.	\[N{{H}_{3}}\]
Answer» C. \[{{(C{{H}_{3}})}_{3}}N\]

Discussion

1824.	The following compound can be classified as N-N dimethyl propanamine, N-methyl aniline and aniline [Bihar MEE 1996]
A.	Primary, secondary, tertiary
B.	Primary, tertiary, secondary
C.	Secondary, tertiary, primary
D.	Tertiary, primary, secondary
E.	None of these
Answer» F.

Discussion

1825.	The fusion of sodium with amine gives mainly [MP PMT 1999; CPMT 2002]
A.	NaCN
B.	\[Na{{N}_{3}}\]
C.	NaSCN
D.	\[NaN{{O}_{2}}\]
Answer» B. \[Na{{N}_{3}}\]

Discussion

1826.	The amine which does not react with acetyl chloride is or Which of the following cannot be acetylated [MP PET 1999; MP PMT 1999]
A.	\[C{{H}_{3}}N{{H}_{2}}\]
B.	\[{{(C{{H}_{3}})}_{2}}NH\]
C.	\[{{(C{{H}_{3}})}_{3}}N\]
D.	None of these
Answer» D. None of these

Discussion

1827.	The alkyl cyanides when hydrolysed to the corresponding acid, the gas evolved is
A.	\[{{N}_{2}}\]
B.	\[{{O}_{2}}\]
C.	\[N{{H}_{3}}\]
D.	\[C{{O}_{2}}\]
Answer» D. \[C{{O}_{2}}\]

Discussion

1828.	The reaction of \[HN{{O}_{2}}\] with 'A' gives quaternary ammonium salt. A is [MP PMT 1997]
A.	Methyl amine
B.	Dimethyl amine
C.	Trimethyl amine
D.	Aniline
Answer» D. Aniline

Discussion

1829.	Which of the following has the smell of bitter almonds
A.	Nitromethane
B.	Nitroethane
C.	Nitrobenzene
D.	Aniline
Answer» D. Aniline

Discussion

1830.	Which of the following is not used as an explosive [MP PET 1996]
A.	Trinitrotoluene
B.	Trinitrobenzene
C.	Picric acid
D.	Nitrobenzene
Answer» E.

Discussion

1831.	Which statement is not correct [MP PMT 1995]
A.	Amines form hydrogen bond
B.	Ethyl amine has higher boiling point than propane
C.	Methyl amine is more basic than ammonia
D.	Dimethyl amine is less basic than methyl amine
Answer» E.

Discussion

1832.	Aniline on treatment with conc. \[HN{{O}_{3}}+\] conc. \[{{H}_{2}}S{{O}_{4}}\] mixture yields [AIIMS 1992]
A.	o- and p-nitroanilines
B.	m-nitroanilines
C.	A black tarry matter
D.	No reaction
Answer» D. No reaction

Discussion

1833.	Aniline reacts with alkyl halide to give [KCET 1984]
A.	Amino compound
B.	Tertiary compound
C.	Quaternary ammonium compound
D.	Azomethane
Answer» D. Azomethane

Discussion

1834.	Unpleasant smelling carbylamines are formed by heating alkali and chloroform with [KCET 1987, 2000, 01]
A.	Any amine
B.	Any aliphatic amine
C.	Any aromatic amine
D.	Any primary amine
Answer» E.

Discussion

1835.	Aniline on treatment with excess of bromine water gives [AFMC 1990; MP PMT 1991; RPMT 1997]
A.	Aniline bromide
B.	o-bromoaniline
C.	p-bromoaniline
D.	2, 4, 6-tribromoaniline
Answer» E.

Discussion

1836.	Among the following compounds nitrobenzene, benzene, aniline and phenol, the strongest basic behaviour in acid medium is exhibited by [KCET 1993]
A.	Phenol
B.	Aniline
C.	Nitrobenzene
D.	Benzene
Answer» C. Nitrobenzene

Discussion

1837.	Correct order of increasing basicity is [CBSE PMT 1992]
A.	\[N{{H}_{3}}<{{C}_{6}}{{H}_{5}}N{{H}_{2}}<{{({{C}_{2}}{{H}_{5}})}_{2}}NH<{{C}_{2}}{{H}_{5}}N{{H}_{2}}<{{({{C}_{2}}{{H}_{5}})}_{3}}N\]
B.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}<N{{H}_{3}}<{{({{C}_{2}}{{H}_{5}})}_{3}}N<{{({{C}_{2}}{{H}_{5}})}_{2}}NH<{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]
C.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}<N{{H}_{3}}<{{C}_{2}}{{H}_{5}}N{{H}_{2}}<{{({{C}_{2}}{{H}_{5}})}_{3}}N<{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]
D.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}<{{({{C}_{2}}{{H}_{5}})}_{3}}N<N{{H}_{3}}<{{C}_{2}}{{H}_{5}}N{{H}_{2}}<{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]
Answer» E.

Discussion

1838.	The alkyl cyanides are
A.	Acidic
B.	Basic
C.	Neutral
D.	Amphoteric
Answer» B. Basic

Discussion

1839.	The decreasing order of the basic character of the three amines and ammonia is [MP PET/PMT 1988; KCET 1990]
A.	\[N{{H}_{3}}>C{{H}_{3}}N{{H}_{2}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
B.	\[{{C}_{2}}{{H}_{5}}N{{H}_{2}}>C{{H}_{3}}N{{H}_{2}}>N{{H}_{3}}>{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]
C.	\[{{C}_{6}}{{H}_{5}}N{{H}_{2}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>C{{H}_{3}}N{{H}_{2}}>N{{H}_{3}}\]
D.	\[C{{H}_{3}}N{{H}_{2}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>{{C}_{6}}{{H}_{5}}N{{H}_{2}}>N{{H}_{3}}\]
Answer» C. \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>C{{H}_{3}}N{{H}_{2}}>N{{H}_{3}}\]

Discussion

1840.	Nitrobenzene on reduction by zinc and \[N{{H}_{4}}Cl\] gives [CPMT 1989, 94; BHU 1996; Pb. PMT 1999]
A.	Aniline
B.	Nitrosobenzene
C.	Hydrazobenzene
D.	Phenylhydroxyl amine
Answer» E.

Discussion

1841.	Methyl amine reacts with \[HN{{O}_{2}}\] giving [RPMT 1997]
A.	\[C{{H}_{3}}O-N=O\]
B.	\[C{{H}_{3}}-O-C{{H}_{3}}\]
C.	\[C{{H}_{3}}OH\]
D.	A and B both
Answer» E.

Discussion

1842.	Primary and secondary amines are distinguished by [AMU 1988; MP PMT 1996]
A.	\[B{{r}_{2}}/KOH\]
B.	\[HCl{{O}_{4}}\]
C.	\[HN{{O}_{2}}\]
D.	\[N{{H}_{3}}\]
Answer» D. \[N{{H}_{3}}\]

Discussion

1843.	Which one of the following will give a primary amine on hydrolysis [BHU 1982]
A.	Nitroparaffin
B.	Alkyl cyanide
C.	Oxime
D.	Alkyl isocyanide
Answer» E.

Discussion

1844.	The end product of the reactions is \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\xrightarrow{HN{{O}_{2}}}A\xrightarrow{PC{{l}_{5}}}B\xrightarrow{H.N{{H}_{2}}}C\] [CPMT 1988, 89, 93; DCE 1999; JIPMER 2000]
A.	Ethyl cyanide
B.	Ethyl amine
C.	Methyl amine
D.	Acetamide
Answer» C. Methyl amine

Discussion

1845.	Identify the product Z in the series \[C{{H}_{3}}CN\xrightarrow{Na+{{C}_{2}}{{H}_{5}}OH}X\xrightarrow{HN{{O}_{2}}}Y\underset{{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}}}\,Z\] [AIIMS 1983; JIPMER 2001]
A.	\[C{{H}_{3}}CHO\]
B.	\[C{{H}_{3}}CON{{H}_{2}}\]
C.	\[C{{H}_{3}}COOH\]
D.	\[C{{H}_{3}}C{{H}_{2}}NHOH\]
Answer» D. \[C{{H}_{3}}C{{H}_{2}}NHOH\]

Discussion

1846.	The compound which on reaction with aqueous nitrous acid on \[HN{{O}_{2}}\] at low temperature produces an oily nitrosoamine is [IIT 1981; CPMT 1989; MP PET/PMT 1998; Kurukshetra CEE 1998; MP PMT 2001]
A.	Diethylamine
B.	Ethylamine
C.	Aniline
D.	Methylamine
Answer» B. Ethylamine

Discussion

1847.	Nitro group in nitrobenzene is a [MNR 1986]
A.	Ortho director
B.	Meta director
C.	Para director
D.	Ortho and para director
Answer» C. Para director

Discussion

1848.	When methyl cyanide is hydrolysed in presence of alkali, the product is [MP PMT 1993; BCECE 2005]
A.	Acetamide
B.	Methane
C.	\[C{{O}_{2}}+{{H}_{2}}O\]
D.	Acetic acid
Answer» E.

Discussion

1849.	When chloroform reacts with ethyl amine in presence of alcoholic KOH, the compound formed is [CPMT 1983; MP PMT 1993; CBSE PMT 1997; BHU 1999; AIEEE 2002]
A.	Ethyl cyanide
B.	Ethyl isocyanide
C.	Formic acid
D.	An amide
Answer» C. Formic acid

Discussion

1850.	On heating acetamide in presence of \[{{P}_{2}}{{O}_{5}},\] which of the following is formed [MP PMT 1992; MP PET 1994; Kurukshetra CEE 1998]
A.	Ammonium acetate
B.	Acetonitrile
C.	\[N{{H}_{3}}\]
D.	Methylamines
Answer» C. \[N{{H}_{3}}\]

Discussion

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

The compound A with following sequence of reaction gave benzoic acid \[A\xrightarrow{NaN{{O}_{2}}/HCl}B\xrightarrow{KCN}C\xrightarrow{{{H}_{3}}{{O}^{+}}}\] benzoic acid. The compound A is [AMU 2001]

Which of the following chemicals are used to manufacture methyl isocyanate that caused ?Bhopal Tragedy? (i) Methylamine (ii) Phosgene (iii) Phosphine (iv) Dimethylamine [AIIMS 2005]

Alkyl cyanides when react with Grignard reagent, the product on hydrolysis found, is [MP PMT 1980]

Nitrobenzene on further excessive nitration gives [AFMC 2001]

Among the following, the strongest base is [UPSEAT 2000; IIT-JEE (Screening) 2000]

Aniline and methyl amine can be differentiated by [DPMT 2000]

Decreasing order of basicity is [RPET 2000] (1) \[C{{H}_{3}}CON{{H}_{2}}\] (2) \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\] (3) Ph?\[C{{H}_{2}}CON{{H}_{2}}\]

\[RCOCl+2M{{e}_{2}}NH\to A+M{{e}_{2}}\overset{+\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{N{{H}_{2}}C{{l}^{-}}}}\,\]Here A is [RPET 2000]

\[C{{H}_{3}}CN\] is known as acetonitrile because [AMU 1999]

In the reaction \[C{{H}_{3}}CN+C{{H}_{3}}MgI\to A\xrightarrow{{{H}_{2}}O/{{H}^{+}}}B\] The compound B is [KCET 1999]

Nitrosobenzene can be isolated from nitrobenzene under [DPMT 1982]

A primary amine can be converted to an alcohol by the action of [CET Pune 1998]

In the diazotisation of aniline with sodium nitrite and hydrochloric acid, an excess of hydrochloric acid is used primarily to [Pb. PMT 1998]

Which one is less alkaline [CPMT 1997]

The major product (70% to 80%) of the reaction between m-dinitrobenzene with \[N{{H}_{4}}HS\] is [AIIMS 1997]

If methyl is alkyl group, then which order of basicity is correct [RPMT 1997]

p-Nitrobromobenzene can be converted to p-nitroaniline by using \[NaN{{H}_{2}}\]. The reaction proceeds through the intermediate named [Orissa JEE 2005]

Which one of the following is not a base [EAMCET 1997]

Aniline when treated with conc. \[HN{{O}_{3}}\] gives [KCET 1996]

Aniline when treated with \[HN{{O}_{2}}\] and HCl at \[{{0}^{o}}C\] gives [CPMT 1982, 89; RPMT 2000]

In the reduction of nitrobenzene, which of the following is the intermediate [CPMT 1999]

Which of the following compounds does not react with \[NaN{{O}_{2}}\] and HCl [KCET 1996]

Which of the following is most basic [MP PMT 1999]

The following compound can be classified as N-N dimethyl propanamine, N-methyl aniline and aniline [Bihar MEE 1996]

The fusion of sodium with amine gives mainly [MP PMT 1999; CPMT 2002]

The amine which does not react with acetyl chloride is or Which of the following cannot be acetylated [MP PET 1999; MP PMT 1999]

The alkyl cyanides when hydrolysed to the corresponding acid, the gas evolved is

The reaction of \[HN{{O}_{2}}\] with 'A' gives quaternary ammonium salt. A is [MP PMT 1997]

Which of the following has the smell of bitter almonds

Which of the following is not used as an explosive [MP PET 1996]

Which statement is not correct [MP PMT 1995]

Aniline on treatment with conc. \[HN{{O}_{3}}+\] conc. \[{{H}_{2}}S{{O}_{4}}\] mixture yields [AIIMS 1992]

Aniline reacts with alkyl halide to give [KCET 1984]

Unpleasant smelling carbylamines are formed by heating alkali and chloroform with [KCET 1987, 2000, 01]

Aniline on treatment with excess of bromine water gives [AFMC 1990; MP PMT 1991; RPMT 1997]

Among the following compounds nitrobenzene, benzene, aniline and phenol, the strongest basic behaviour in acid medium is exhibited by [KCET 1993]

Correct order of increasing basicity is [CBSE PMT 1992]

The alkyl cyanides are

The decreasing order of the basic character of the three amines and ammonia is [MP PET/PMT 1988; KCET 1990]

Nitrobenzene on reduction by zinc and \[N{{H}_{4}}Cl\] gives [CPMT 1989, 94; BHU 1996; Pb. PMT 1999]

Methyl amine reacts with \[HN{{O}_{2}}\] giving [RPMT 1997]

Primary and secondary amines are distinguished by [AMU 1988; MP PMT 1996]

Which one of the following will give a primary amine on hydrolysis [BHU 1982]

The end product of the reactions is \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\xrightarrow{HN{{O}_{2}}}A\xrightarrow{PC{{l}_{5}}}B\xrightarrow{H.N{{H}_{2}}}C\] [CPMT 1988, 89, 93; DCE 1999; JIPMER 2000]

Identify the product Z in the series \[C{{H}_{3}}CN\xrightarrow{Na+{{C}_{2}}{{H}_{5}}OH}X\xrightarrow{HN{{O}_{2}}}Y\underset{{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}}}\,Z\] [AIIMS 1983; JIPMER 2001]

The compound which on reaction with aqueous nitrous acid on \[HN{{O}_{2}}\] at low temperature produces an oily nitrosoamine is [IIT 1981; CPMT 1989; MP PET/PMT 1998; Kurukshetra CEE 1998; MP PMT 2001]

Nitro group in nitrobenzene is a [MNR 1986]

When methyl cyanide is hydrolysed in presence of alkali, the product is [MP PMT 1993; BCECE 2005]

When chloroform reacts with ethyl amine in presence of alcoholic KOH, the compound formed is [CPMT 1983; MP PMT 1993; CBSE PMT 1997; BHU 1999; AIEEE 2002]

On heating acetamide in presence of \[{{P}_{2}}{{O}_{5}},\] which of the following is formed [MP PMT 1992; MP PET 1994; Kurukshetra CEE 1998]