Engineering Questions with Answers - Multiple Choice Questions
Unit Processes MCQ’s – Nitrating Agents
1 - Question
The Nitration reaction serves to introduce one or more ______ groups into a reacting molecule.
a) Nitro group
b) Nitrite group
c) Ammonia group
d) None of the mentioned
View Answer
Explanation: Nitro group (-NO2) is used in nitration reactions.
2 - Question
What is the formula of Nitrogen pentoxide?
a) N3O5
b) N2O4
c) N2O5
d) N3O4
View Answer
Explanation: the formula of nitrogen pentoxide is N2O5, as it ‘penta’ means 5 oxygen atoms.
3 - Question
What is ” N2O4” called?
a) Nitrogen pentoxide
b) Nitrogen Trioxide
c) Nitrogen Dioxide
d) Nitrogen Tetroxide
View Answer
Explanation: It is called Nitrogen tetroxide, as it contains 4 oxygen atom which is called” tetra”.
4 - Question
Which is the most important Nitrating medium?
a) Nitric acid and H2SO3
b) Nitric acid and Sulphuric acid
c) Nitrogentetraoxide and -H2SO4
d) All of the mentioned
View Answer
Explanation: A mixture on nitric acid and sulphuric acid give the most nitrating medium.
5 - Question
What is the formula of Nitrile ion?
a) -NO2+
b) -NO3+
c) -NO
d) -NO+
View Answer
Explanation: The Nitrile ion is shown as -NO2+, it’s formed due to reaction of nitric acid and sulphuric acid.
6 - Question
HNO3 + 2H2SO4 ——-> _____ + H3O+ 2HSO4-. Fill in the blank?
a) NO+
b) NO2+
c) NO3+
d) None of the mentioned
View Answer
Explanation: Nitric ion is called NO2+, it stabilises the reaction and brings equilibrium.
7 - Question
Nitric acid have different Ultraviolet spectrum?
a) True
b) False
View Answer
Explanation: Nitric acid has 3 different types of ultraviolet spectrums.
8 - Question
What is an Azide ion?
a) -N+
b) -N2+
c) -N3+
d) -N4+
View Answer
Explanation: An azide ion is denoted by -N3+ ion.
9 - Question
The 3 different Ultraviolet spectrum are dilute aqueous solvent, inert solvent and ester.
a) True
b) False
View Answer
Explanation: The above statement is true.
10 - Question
What is the mixture of Nitric acid and Sulphuric acid called?
a) Nitrite ion
b) Combined acid
c) Addition acid
d) Mixed Acid
View Answer
Explanation: The mixture of nitric acid and sulphuric acid is called mixed acid.