Urea is not used:
As fertilizer
In the manufacture of plastic
In the preparation of medicines
In the purification of water
Nitroparaffins on reduction give:
Amide
Alkylamine
Ammonium salt
Acetanilide
Which of the following is not a nitro derivative?
C6H5NO2
CH3CH2ONO
CH3C|CH3H-N↘O=O
C6H4(OH)NO2
Which of the following amines is optically active?
(3) CH3CH2CH2-N|CH3-C2H5
CH3NH2
CH3NHCH3
(4) Sec. butylamine
The number of π-bonds in the formula given below, NC-CH=CH-CN are:
5
4
3
2
Ketones and 1° amines react to form:
Amides
Oximes
Urea
Imines
Which compound will liberate CO2 from NaHCO3 solution?
CH3CONH2
(CH3)4N+OH-
CH3N+H3Cl-
C6H5NO2→Fe/HClA→273 KNaNO2/HClB→283 KH2OC 'C' is
C6H5-OH
C6H5-CH2OH
C6H5-CHO
C6H5NH2
Nitrobenzene on reaction with Conc. HNO3/H2SO4 at 80-100 °C forms which one of the following products?
1,4-Dinitrobenzene
Which of the following compounds is most basic here
diphenyl amine
dimethyl amine
guanidine
trimethyl amine
The melting point is highest for -
Primary amines
Secondary amines
Tertiary amines
Quaternary amines
Carbylamine test is performed in alcoholic KOH by heating a mixture of
trihalogenated methane and a primary amine
an alkyl halide and a primary amine
an alkyl cyanide and a primary amine
chloroform and silver powder
Hinsberg reagent is
C6H5NO
C6H5N2Cl
C6H5SO2Cl
C6H5SO3H
When acetamide is treated with NaOBr, the product formed is
CH3OH
CH3CN
CH3COBr
The compound which one reaction with aqueous nitrous acid at low temperature produces an oily nitrosamine is
methylamine
ethylamine
triethylamine
diethylamine
Which compound is formed when CH34N+OH- is heated ?
C2H5NH2
CH23N
CH33N
The reagent that converts nitromethane to methylhydroxylamine is -
Zn/NaOH
Sn/HCl
Zn/NH4Cl
Zn/HCl
An amine that does not give carbylamine reaction is -
Ethylamine
Dimethylamine
Methylamine
Phenylamine
Which is most basic?
CH32NH
C6H52NH
Which of the following reagent can be used to convert benzenediazonium chloride into benzene
H3PO2
LiAlH4
Br2- H2O
Which of the following reacts with Hinsberg reagent (Benzene sulphonyl chloride) to form a product, soluble in KOH?
Primary amine
Secondary amine
Tertiary amine
Quaternary amine
The most reactive towards electrophilic substitution among the following is -
Nitrobenzene
Aniline
Aniline hydrochloric
n-Acetylaniline
Carbylamine reaction can be given by -
C2H5NO2
CH3NH2+CHCl3+KOH → Nitrogen containing compound+KCl+H2O. The nitrogen-containing compound is
CH3-CH2-C≡N
CH3-NH-CH3
CH3-N-≡C+
CH3N+ ≡C-
C2H5NH2 , C6H5NHCH3, (C2H5)2NH and C6H5NH2
For the above compounds, decreasing order of the pKb values (in gaseous phase) is -
C6H5NH2 > C6H5NHCH3 > C2H5NH2 > (C2H5)2NH
C2H5NH2 > C6H5NHCH3 > C6H5NH2 > (C2H5)2NH
C6H5NHCH3 > C6H5NH2 > C2H5NH2 > (C2H5)2NH
(C2H5)2NH > C6H5NHCH3 > C2H5NH2 > C6H5NH2
The increasing order of boiling point of
C2H5OH, (CH3)2NH, C2H5NH2 is-
(CH3)2NH < C2H5NH2 < C2H5OH
(CH3)2NH > C2H5NH2 > C2H5OH
(CH3)2NH < C2H5NH2 > C2H5OH
(CH3)2NH < C2H5OH< C2H5NH2
The increasing sequence of solubility of the following molecules ;C6H5NH2, (C2H5)2NH, C2H5NH2
in water is -
C6H5NH2 < (C2H5)2NH < C2H5NH2
C6H5NH2 > (C2H5)2NH < C2H5NH2
C6H5NH2 > (C2H5)2NH > C2H5NH2
C6H5NH2 < (C2H5)2NH > C2H5NH2
Arrange the following in increasing order of their basic strength: CH3NH2, (CH3)2NH, (CH3)3N, C6H5NH2, C6H5CH2NH2
1. C6H5NH2< C6H5CH2NH2 < (CH3)3N< CH3NH2< (CH3)2NH2. C6H5NH2< (CH3)3N< C6H5CH2NH2 < CH3NH2< (CH3)2NH3. (CH3)2NH< C6H5NH2< (CH3)3N< C6H5CH2NH2 < CH3NH24. (CH3)3N<C6H5NH2< C6H5CH2NH2 < CH3NH2< (CH3)2NH
C6H5N2Cl+H3PO2+H2O:
The product from the above reaction would be -
1.C6H5NC
2. C6H6CH3
3.C6H5CN
4. C6H6
Arrange the following in increasing order of their basic strength: (CH3)2NH, CH3NH2, (CH3)3N, C6H5NH2, C6H5CH2NH2
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