Engineering Questions with Answers - Multiple Choice Questions
Unit Processes MCQ’s – Technical Manufacturing of Amino Compound – 2
1 - Question
In the reaction of 2-Aminoanthraquinone from 2-Chloroanthraquinone what oxidants do we use?
a) Potassium chlorate
b) Nitric acid
c) Halogen
d) All of the mentioned
View Answer
Explanation: In the reaction of 2-Aminoanthraquinone from 2- Chloroanthraquinone, by the use of potassium chlorate and ammonium nitrate as oxidants, it is possible to obtain directly a 2-aminoanthraquinone of 97.5-98.5 per cent purity.
2 - Question
The preparation of p-Nitroaniline in Jacketed Autoclaves is done in which reactor?
a) Continuous
b) Batch
c) Semibatch
d) Tubular
View Answer
Explanation: The preparation of p-Nitroaniline in done in batch reactor.
3 - Question
What does magma consists of?
a) Aluminium
b) Nitroaniline
c) Aniline
d) All of the mentioned
View Answer
Explanation: The magma consist of finely divided nitroaniline and ammonium chloride solution.
4 - Question
What does CK stand for in continuous production of nitroaniline?
a) Cooling vessel
b) Agitated vessel
c) Both of the mentioned
d) None of the mentioned
View Answer
Explanation: In continuous production of nitroaniline, CK stands for water-cooled agitated vessel.
5 - Question
Sodium Anthraquinone-2-sulfonate on amination produces what?
a) 2-Aminoanthraquinone
b) 3-Aminoanthraquinone
c) 2-anthraquinone
d) 2-Aminequinone
View Answer
Explanation: Sodium Anthraquinone-2-sulfonate on amination in presence of oxidant produces 2-Aminoanthraquinone.
6 - Question
Sodium Anthraquinone-2-sulfonate is also called what?
a) Zinc salt
b) Silver salt
c) Iron salt
d) Potassium salt
View Answer
Explanation: The preparation of 2-aminoanthraquinone from “silver” salt i.e. Sodium Anthraquinone-2-sulfonate.
7 - Question
What is the yield of the production of 2-aminoanthraquinone?
a) 70-80
b) 80-90
c) 90-100
d) None of the mentioned
View Answer
Explanation: The 2-aminoanthraquinone obtained by this process generally averages 99 per cent pure, by titration with sodium nitrite. The yields range from 90-94 per cent of the theoretical.
8 - Question
What product(s) do we get on reaction of methanol with ammonia?
a) Trimethylamines
b) Dimethylamines
c) Monomethylamines
d) All of the mentioned
View Answer
Explanation: Mono-, di-, and trimethylamines are obtained by the reaction of methanol with ammonia under a pressure of 50 atm at about 380-450°C, over an aluminium oxide catalyst.
9 - Question
Trimethylamines form an azeotrope in the above reaction.
a) True
b) False
View Answer
Explanation: Trimethylamine forms a binary azeotrope not only with NH3, but with mono- and dimethylamines as well, and that mono- and dimethylamine mixtures, boiling about 14°C apart, can be conveniently separated by fractional distillation.
10 - Question
The solubility is only influenced by solvent.
a) True
b) False
View Answer
Explanation: Solubility is influenced not only by the solvent, but by the different basicities of the amines.
11 - Question
What is meant by TMMD?
a) Trimethylmethylenediamine
b) Tetramethylmethylenediamine
c) Trimethydiamine
d) None of the mentioned
View Answer
Explanation: The full form of TMMD is Tetramethylmethylenediamine.
12 - Question
Hydroammonolysis of Acetone yield a mixture of products.
a) True
b) False
View Answer
Explanation: Hydroammonolysis of Acetone thus yields a mixture of mono-, di-, and triisopropylamines.
13 - Question
Which reactants are best for the industrial preparation of amines by the ammonolysis?
a) Aromatic
b) Halides
c) Alcohols
d) All of the mentioned
View Answer
Explanation: The successful industrial preparation of amines by the ammonolysis of aromatic halides, alcohols, and sulfonic acids depends largely upon the proper functioning of the ammonia system.