Engineering Questions with Answers - Multiple Choice Questions
Unit Processes MCQ’s – Nitration of Organic Solvent
1 - Question
If alkyl group increases, what happens to ortho: para ratio?
a) Does not affect
b) Increases
c) Decreases
d) None of the mentioned
View Answer
Explanation: If alkyl group increases, the ortho substituted product decreases and ortho: para ratio decreases.
2 - Question
The inductive effect is weaker at ortho position than at para position.
a) True
b) False
View Answer
Explanation: The inductive effect is stronger at ortho position than at para.
3 - Question
The rate of Nitration depends upon what?
a) Temperature
b) Concentration
c) Pressure
d) All of the mentioned
View Answer
Explanation: The rate of reaction is proportional to the concentration of the nitric and sulphuric acid.
4 - Question
The kinetics of the nitration process depends upon what?
a) Aromatic compounds
b) Catalyst
c) Nitrite compounds
d) None of the mentioned
View Answer
Explanation: With increase in aromatic compounds, the kinetics of nitration process increases.
5 - Question
Which order kinetics show highly reactive substrates?
a) Zero order
b) First order
c) Second order
d) None of the mentioned
View Answer
Explanation: The reactive of the substrate is highest with Zero order reaction.
6 - Question
What do you mean by RDS?
a) Rate determining step
b) Step on which the reaction depends
c) It is the fastest step in the reaction
d) All of the mentioned
View Answer
Explanation: RDS is called the rate determining step, the rate of reaction depends on this step and the majority of reaction takes place through this step.
7 - Question
Is nitrosyl ion much weaker electrophile reagent than nitrile ion?
a) True
b) False
View Answer
Explanation: Nitrosyl ion in NO+ whereas Nitrile ion in NO-, therefore nitrite ion is a stronger electrophile.
8 - Question
How many -NO2 groups are there in Picric acid?
a) Zero
b)One
c)Two
d)Three
View Answer
Explanation: Picric acid is also called 2, 4, 6- trinitrophenol and hence it contains three nitro groups.
9 - Question
ArH + (NO+) —-> _____ + (H+)
a) Ar
b) ArNO
c) ArNO2
d) None of the mentioned
View Answer
Explanation: The following reaction takes place as, ArH + (NO+) ———> ArNO + (H+).