Explore topic-wise MCQs in Unit Processes.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.

1.

What all factors affects the Amination by reduction process?

A. Amount of iron and water used
B. Effect of agitation
C. Reaction temperature
D. All of the mentioned
Answer» E.
Discussion
2.

Why do we use Iron (Fe) as catalysis in Amination by reduction processes?

A. It’s great fineness
B. High porosity
C. High oxidation power
D. All of the mentioned
E. as catalysis in Amination by reduction processes?a) It’s great finenessb) High porosityc) High oxidation powerd) All of the mentioned
Answer» E. as catalysis in Amination by reduction processes?a) It’s great finenessb) High porosityc) High oxidation powerd) All of the mentioned
Discussion
3.

C6H5NO2 + 2Fe + 6HCl ——–> ______ + 2H2O + 2FeCl3 complete the reduction reaction?

A. C6H5NH4
B. C6H5NO2
C. C6H5NH-C6H5
D. C6H5NH4
Answer» B. C6H5NO2
Discussion
4.

C6H5-NO2 gives C6H5-NH2 under which catalyst?

A. Zn-acid
B. Zn-water
C. Zn-alkali
D. All of the mentioned
Answer» B. Zn-water
Discussion
5.

What product do we get if C6H5-NO2 is catalysed by ‘Zn + water’?

A. C6H5-NH2
B. C6H5-NHOH
C. C6H6-NH-NH-C6H5
D. None of the mentioned
Answer» C. C6H6-NH-NH-C6H5
Discussion
6.

WHY_DO_WE_USE_IRON_(FE)_AS_CATALYSIS_IN_AMINATION_BY_REDUCTION_PROCESSES??$

A. It’s great fineness
B. High porosity
C. High oxidation power
D. All of the mentioned
Answer» E.
Discussion
7.

What all factors affects the Amination by reduction process?$

A. Amount of iron and water used
B. Effect of agitation
C. Reaction temperature
D. All of the mentioned
Answer» E.
Discussion
8.

What is meant by an Electrophilic nitro group?

A. Repels electron
B. Attracts electron
C. Free radical atoms
D. Attract protons
Answer» C. Free radical atoms
Discussion
9.

What is the formula of Aryl amines?

A. C<sub>6</sub>H<sub>5</sub>-NO<sub>2</sub>
B. C<sub>6</sub>H<sub>5</sub>-NH-C<sub>6</sub>H<sub>5</sub>
C. CH<sub>3</sub>-NH<sub>2</sub>
D. C<sub>6</sub>H<sub>5</sub>-NH<sub>2</sub>
Answer» E.
Discussion
10.

C6H5NO2 + 2Fe + 6HCl ——–> ______ + 2H2O + 2FeCl3 complete the reduction reaction?$

A. C<sub>6</sub>H<sub>5</sub>NH<sub>4</sub>
B. C<sub>6</sub>H<sub>5</sub>NO<sub>2</sub>
C. C<sub>6</sub>H<sub>5</sub>NH-C<sub>6</sub>H<sub>5</sub>
D. C<sub>6</sub>H<sub>5</sub>NH<sub>4</sub>
Answer» B. C<sub>6</sub>H<sub>5</sub>NO<sub>2</sub>
Discussion
11.

Who discovered in 1854 that nitro compounds could be reduced in the presence of iron and acetic acid?

A. Perkin’s
B. Bechamp’s
C. Cara’s acid
D. None of the mentioned
Answer» C. Cara‚Äö√Ñ√∂‚àö√ë‚àö¬•s acid
Discussion
12.

In the presence of what do we hydrolyse Anilide to an Amine?

A. Alkali
B. Zinc
C. Mineral acids
D. Sulphite
Answer» D. Sulphite
Discussion
13.

C6H5-NO2 gives C6H5-NH2 under which catalyst?

A. Zn-acid
B. Zn-water
C. Zn-alkali
D. All of the mentioned
Answer» B. Zn-water
Discussion
14.

What product do we get if C6H5-NO2 is catalysed by ‘Zn + water’?$

A. C<sub>6</sub>H<sub>5</sub>-NH<sub>2</sub>
B. C<sub>6</sub>H<sub>5</sub>-NHOH
C. C<sub>6</sub>H<sub>6</sub>-NH-NH-C<sub>6</sub>H<sub>5</sub>
D. None of the mentioned
Answer» C. C<sub>6</sub>H<sub>6</sub>-NH-NH-C<sub>6</sub>H<sub>5</sub>
Discussion
15.

What is a Piria method?

A. Electrolytic method
B. Sulphite method
C. Sulphide method
D. Catalytic method
Answer» C. Sulphide method
Discussion
16.

Which of the following is a reduction method for the preparation of Amines?

A. Metal and acids
B. Sulphide
C. Metal and alkali
D. All of the mentioned
Answer» E.
Discussion