WorksheetsDistinguish among primary, secondary, tertiary amines & aniline
Total questions: 20
Worksheet time: 10mins
Hinsberg Reagent is
Benzenesulphonyl trichloride
Benzenesulphonyl fluoride
Benzenesulphonyl diachloride
Benzenesulphonyl chloride
Aniline can be converted into phenyl iso cyanide by
Hinsberg Reagent
Carbylamine Reagent
Iodoform
CU/HCL
Carbylamine reagent is
CHCL3
CHCL3 + Br2
CHCl3 + KOH
CHCL3 + KCL
NaNO2 + HCL is used in
Alkylation
Acylation
Diazotization
Friedel Craft
Aniline and N methylaniline can be distinguish by
Hinsberg reagent
Nitrous acid
Carbylamine test
Azo dye test
The fishy odour of 1-propanamine is lost when HCI acid is added because
A. Neutralisation occur to form salt
B. 1-chloropropane which is insoluble in water is formed
C. 1-propanamine reacts with HCI to form propanoyl chloride
D. 1-propanamine reacts with HCI to form diazonium ion
Secondary and tertiary amines can be chemically distinguised by________
Isocyanide test
Teollen's test
Hinsberg test
Fehling's test
Aniline does not undergo ____________-
Carbylamine reaction
Diazotization
Friedel Craft's reaction
Isocyanide reaction
Aniline when reacts with bromine water at room
temperature, gives
white precipitate of 2,4,6-tribromoaniline
white precipitate of 2-bromoaniline
white precipitate of 2,4,-dibromoaniline
aniline does not react with bromine at room temperature.
Compound X reacts with nitrous acid at 3oC to release nitrogen gas. Compound X is
Which of the following can be used to distinguish aniline from cyclohexanamine?
(You may choose more than one correct answer)
Hinsberg's Test
Nitrous Acid Test
Bromine Water
2,4-dinitrophenylhydrazine
Which compound release nitrogen gas when react with nitrous acid?
Hinsberg’s test gives yellow oil to
primary amine
secondary amine
tertiary amine
primary aliphatic amine
What is the reagent for nitrous acid
NaNO2, HCl
HNO2
HNO3
NH3
What is the positive observation when aniline reacts with bromine water?
reddish brown colour of bromine decolourised
reddish brown colour of bromine remain unchanged
white precipitate
purple complex
The table below shows the result obtained when amines reacted with benzenesulphonyl chloride. Which of the following is the observation of X and Y?
X= precipitate, Y= clear solution
X= precipitate, Y= precipitate
X= clear solution, Y= clear solution
X= clear solution, Y= precipitate
Structure A release gas nitrogen after react with nitrous acid. Predict structure A.
1-butanamine
N-methyl-2-propanamine
aniline
N-methylaniline
In Hinsberg reaction, after the reaction with benzene sulfonil chloride, secondary amine will ... in base solution, than ... in acid solution.
Soluble, insoluble
Insoluble, no change
No change, Soluble
Soluble, no change
have a smell of death / decay or rotting fish
amides
amines
carboxylic acids
haloalkanes
(a) coupling can help distinguish between phenol and aniline.
