12th Grade > Chemistry
AMINES MCQs
Total Questions : 30
| Page 3 of 3 pages
Question 21. Identify incorrect statements among the following
I. Benzene diazonium chloride with hypophosphorous acid solution gives benzeneamine and phosphorous acid
II. Benzene diazonium chloride with phenol at PH> 7 gives yellow coloured dye
III. Benzene diazonium chloride with cuprous chloride and HCl gives chlorobenzene is called as Gattermann reaction
IV. Benzenediazonium chloride on hydrolysis with water at 100C gives phenol
I. Benzene diazonium chloride with hypophosphorous acid solution gives benzeneamine and phosphorous acid
II. Benzene diazonium chloride with phenol at PH> 7 gives yellow coloured dye
III. Benzene diazonium chloride with cuprous chloride and HCl gives chlorobenzene is called as Gattermann reaction
IV. Benzenediazonium chloride on hydrolysis with water at 100C gives phenol
Answer: Option D. -> I,II,III
:
D
With H3PO2 gives benzene, With phenol it gives orange dye ,III reaction is sandmeyer'sreaction
:
D
With H3PO2 gives benzene, With phenol it gives orange dye ,III reaction is sandmeyer'sreaction
Answer: Option C. -> Formation of 'D' and 'E' from 'A' is Hoffmann bromamide reaction
:
C
A = Phthalimide; B= potassium salt of A ; C = N - methyl phthalimide D & E = Pot. Phthalate and methyl amine
:
C
A = Phthalimide; B= potassium salt of A ; C = N - methyl phthalimide D & E = Pot. Phthalate and methyl amine
Answer: Option A. -> Schiff base
:
A
Condensation product of 10amine with aromatic aldehyde is used as antioxidant
:
A
Condensation product of 10amine with aromatic aldehyde is used as antioxidant
Answer: Option C. -> Aliphatic primary, tertiary and secondary
:
C
B is 30 amine as it is not reacting with benzene sulphonyl chloride; A is 10amine as theproduct is soluble in KOH; C is 20 amine
:
C
B is 30 amine as it is not reacting with benzene sulphonyl chloride; A is 10amine as theproduct is soluble in KOH; C is 20 amine
Answer: Option B. -> 4 : 3 : 1
:
B
10 amines : CH3 - CH2 - CH2 - CH2 - NH2; (CH3)2CH - CH2 - NH2;
CH3 - CH2-CH(CH3) - NH2; (CH3)3C - NH2
30 amine: CH3 - CH2 - N(CH3)2
:
B
10 amines : CH3 - CH2 - CH2 - CH2 - NH2; (CH3)2CH - CH2 - NH2;
CH3 - CH2-CH(CH3) - NH2; (CH3)3C - NH2
30 amine: CH3 - CH2 - N(CH3)2
Answer: Option A. -> Negative catalyst in the decomposition of H2O2
:
A
X = CH3COCl; Y = Acetanilide acts as preservative for H2O2
:
A
X = CH3COCl; Y = Acetanilide acts as preservative for H2O2
Question 27. Regarding benzene diazonium fluoroborate, correct statements are
A.Prepared from aniline by diazotization followed by treating the salt with HBF4
B.Fluorobenzene is obtained by direct fluorination of benzene with F2 gas
C.Unstable at room temperature and soluble in water
D.Stable at room temperature and insoluble in water
A.Prepared from aniline by diazotization followed by treating the salt with HBF4
B.Fluorobenzene is obtained by direct fluorination of benzene with F2 gas
C.Unstable at room temperature and soluble in water
D.Stable at room temperature and insoluble in water
Answer: Option B. -> A & D
:
B
Direct fluorination of benzene is not possible
:
B
Direct fluorination of benzene is not possible
Answer: Option C. -> A is true, R is false
:
C
- SO3H is more acidic than - COOH group
:
C
- SO3H is more acidic than - COOH group
Answer: Option D. -> Ethyl amine
:
D
Aliphatic 10amine gives N2 gas with nitrous acid and alcohol
:
D
Aliphatic 10amine gives N2 gas with nitrous acid and alcohol
Answer: Option D. -> A, C, D
:
D
'B' is 20amine
:
D
'B' is 20amine
Latest Videos
Latest Test Papers
Login With Google
Old way of Login
Login With Email