Organic Compounds Containing Nitrogen  MCQs

MCQs of Organic Compounds Containing Nitrogen

Showing 81 to 90 out of 139 Questions
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81.
What is the colour of the azo dye produced when azo coupling reaction takes place between benzene diazonium chloride and solution of N, N-dimethyl aniline in HCl ?
(a) Red
(b) Orange
(c) Dark Yellow
(d) Green
Answer:

Option (c)

82.
Benzene diazonium chloride forms orange and red dye with _____ .
(a) phenol
(b) cresol
(c) resorcinol
(d) All of the above
Answer:

Option (d)

83.
What is X in the following reaction ? X + C6H5N(CH3)2 →0 - 5°C p - dimethyl amino azo-benzene ?
(a) C6H5NO2
(b) C6H5NH2
(c) C6H5N2Cl
(d) C6H6
Answer:

Option (c)

84.
What is the product obtained when benzene diazonium chloride reacts with SnCl2 + HCl ?
(a) C6H5Cl
(b) C6H6
(c) C6H5NH - NH2
(d) C6H5CN
Answer:

Option (c)

85.
Which reagent is added to the solution of benzene diazonium chloride in order to get orange dye at 273-278 K temperature ?
(a) Aniline/HCl
(b) Dimethyl aniline/HCl
(c) Phenol/NaOH
(d) β Napthol/NaOH
Answer:

Option (c)

86.
X →WaterBromine Y →(NaNO2 + HCl)273-278 KHNO2 Z →∆C2H5OH 1,3,5 - tribromobenzene X = ? Identify X in the above reaction.
(a) Tribromoaniline
(b) Aniline
(c) Phenol
(d) Benzene diazonium chloride
Answer:

Option (b)

87.
What is the reagent used in Gattermann reaction ?
(a) Cu/HX
(b) Cu2O/NH3
(c) Cu/NH3
(d) CuX/HX
Answer:

Option (a)

88.
Identify X in the following reaction ? CH3 - C ≡ N + CH3CH2OH + H2O →∆H2SO4Conc. X + NH3
(a) Acetic acid
(b) Ethyl amine
(c) Ethyl acetate
(d) Ethyl isonitrile
Answer:

Option (c)

89.
The correct structural formula of ethane nitrile is _____ .
(a) CH3 - CH2 - C ≡ N
(b) CH3 - CH2 - N ≡ C
(c) C2H5 - NC
(d) CH3 - C ≡ N
Answer:

Option (d)

90.
What is the correct IUPAC name of CH2 = CH - CN ?
(a) Vinyl isocyanide
(b) Acrylonitrile
(c) Prop-2-enenitrile
(d) Cyanoethene
Answer:

Option (c)

Showing 81 to 90 out of 139 Questions
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