IISER Chemistry - Organic Chemistry Based on Functional Group - III
Exam Duration: 45 Mins Total Questions : 25
What type of product is formed by dehydration of an amide?
- (a)
an amine
- (b)
an anhydride
- (c)
an ester
- (d)
a nitrile
When benezene is treated with mixtre of conc. H2SO4 and conc. HNO3 at 40-500C the product obtained is
- (a)
benezene sulphonic acid
- (b)
nitrobenzene
- (c)
dinitrobenzene
- (d)
benzoic acid
stephen's reaction is reduction of
- (a)
alkyl cyanide with LiAlH4
- (b)
alkyl cyanide with SnCl2 and HCl
- (c)
alkyl isocyanide with Na and C2H5OH
- (d)
acyl halide in the presence of Pd/BaSO4
On evaporation of an aqueous solution of ammonium cyanate we get urea. This is a reaction known as
- (a)
Polymerisation
- (b)
isomerisation
- (c)
association
- (d)
disassociation
The reaction of ammonia and ethyl chloride gives
- (a)
acetamide
- (b)
ethyl cyanide
- (c)
ethylene
- (d)
a mixture of ethyl amine, diethyl amine, triethyl amine and quaternary ammonium salt
A cyanothydrin of a compound on hydrolysis gave lactic acid; the compound is
- (a)
formaldehyde
- (b)
acetaldehyde
- (c)
acetone
- (d)
formic acid
When chlorobenzene is treated with NH3 in the presence of Cu2O at 2020C and 60 mm atm pressure the product formed would be
- (a)
benezene formed would be
- (b)
benzyl diazonium salt
- (c)
aniline
- (d)
diphenyl
The reaction CH3CONH2 \(\underrightarrow { Br^2+NaOH } \) CH3NH2\(+NaBr+Na_2CO_ 3+H_2O\quad \)is
- (a)
Hinsberg test
- (b)
Hoffmann bromamide reaction
- (c)
Gattermann test
- (d)
Reimer-Teimann reaction
Which one of the following amines cannot be acylated?
- (a)
\({ CH }_{ 3 }{ CH }_{ 2 }NH_{ 2 }\)
- (b)
\(({ CH }_{ 3 })_3{ CNH}_{ 2 }\)
- (c)
\(({ CH }_{ 3 })_2{NH}\)
- (d)
\(({ CH }_{ 3 })_3{ N}\)
Which one of the following amined reacts with HONO to form an alcohol?
- (a)
\(({ CH }_{ 3 })_3{ N}\)
- (b)
\(({ CH }_{ 3 })_2{NH}\)
- (c)
\({ C_6 }{H_5 }NHCH_{3 }\)
- (d)
\({ CH }_{ 3 }{NH_2}\)
Which one of the following is most basic in nature?
- (a)
\({ C_6 }{H_5 }NHCH_{3 }\)
- (b)
\(({ CH }_{ 3 })_2{NH}\)
- (c)
\({ CH_3}{NH_2}\)
- (d)
\({NH_3}\)
Which one of the following is the final product of reduction of nitrobenzene?
- (a)
Azobenzene
- (b)
phenylhydroxylamine
- (c)
aniline
- (d)
nitrosobenzene
Basic charater of the following compounds increases in the order
- (a)
NH3, (CH3)3N, CH3NH2, (CH3)2NH
- (b)
(CH3)3N, CH3NH, CH3NH2,NH3
- (c)
CH3NH2, (CH3)2NH, (CH3)3N, NH3
- (d)
NH3, CH3NH2, (CH3)2NH, (CH3)3N
Nitrosoamine is formed when a
- (a)
primary aliphatic amine reacts with nitrous acid
- (b)
secondary aliphtic amine with nitrus acid
- (c)
primary aromatic amine reacts with nitrous acid
- (d)
primary aromatic amine reacts with nitrous acid
The nitrating species in the nitrating mixture is
- (a)
\({ NO }_{ 2}^{ - } ion\)
- (b)
\({ NO }_{ 2 }^{ + }ion\)
- (c)
\({ NO_2}\)
Which one of the following products is obtained on treatment of aniline with nitrous acid?
- (a)
benzene
- (b)
phenol
- (c)
nitrobenzene
- (d)
benzene diazoniaum salt
Which one of the following products is obtained when aniline reacts with bromine water?
- (a)
o-bromoaniline
- (b)
b-bromoaniline
- (c)
m-bromoaniline
- (d)
2, 4, 6-bromoaniline
Schiff's base is produced when a primary amine reacts with
- (a)
an alcohol
- (b)
an aldehyde
- (c)
an acid
- (d)
a Grignard's reagent
Gabriel phthalamide synthesis is used in the preparation of
- (a)
primary aromatic amines
- (b)
primary aliphatic amines
- (c)
pure primary aliphatic or aromatic amine
- (d)
secondary amines
Which one of the following is known as Hinsberg reagent?
- (a)
ZnCl/HCl
- (b)
Na/C2H5OH
- (c)
LiAlH4
- (d)
C6H5SO2Cl
An amine was treated with Hinsberg reagent. The product formed was insoluble in alkali and which on acidification gave a clear solution. The amine is
- (a)
sec.amine
- (b)
tert. amine
- (c)
primary amine
- (d)
quaternary mine
Which one of the following statements is not correct?
- (a)
alkyl and aryl derivatives of ammonia are called amines
- (b)
amines are basic in nature
- (c)
amines are generally soluble in HCl
- (d)
all amines on treatment with HNO2 and HCl give diazonium salt
when primary amine reacts with chloroform in ethanoic KOH then the product is
- (a)
an isocynate
- (b)
an aldehyde
- (c)
a cyanide
- (d)
an alcohol
The functional gorup which is found in amino acid is
- (a)
\(-\)COOH
- (b)
\(-\)NH2
- (c)
\(-\)CH3
- (d)
both (a) and (b)
Which one of the following reagents will convert acetamide into methyl amine?
- (a)
PCl5
- (b)
NaOH+Br2
- (c)
NaNH2
- (d)
conc.H2SO4