Explore topic-wise MCQs in Food Processing Unit Operations.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.

1.

Is extraction and washing same?

A. True
B. False
Answer» C.
Discussion
2.

What is the major disadvantage of using ether as an extracting solvent?

A. Highly flammable
B. Highly volatile
C. Highly flammable and highly volatile
D. Cold environment
Answer» D. Cold environment
Discussion
3.

Which of the following statements about washing are correct?
Statement 1: Unwanted materials must be more soluble in the solvent than in the mixture.

A. nStatement 2: The solvent and mixture must be immiscible.
B. True, False
C. True, True
D. False, True
E. False, False
Answer» C. True, True
Discussion
4.

How to break emulsion in extraction?

A. By adding NaCl
B. By adding HCl
C. By adding alcohol
D. By adding benzene
Answer» B. By adding HCl
Discussion
5.

What method of extraction is used for fatty acids?

A. Liquid/ liquid
B. Liquid/ soild
C. acid/base
D. Gas/gas
Answer» B. Liquid/ soild
Discussion
6.

Which of the following is also known as a chemically active extraction?

A. Liquid/ liquid
B. Liquid/ soild
C. acid/base
D. Gas/gas
Answer» D. Gas/gas
Discussion
7.

What is not the type of extraction?

A. Liquid/ liquid
B. Liquid/ soild
C. acid/base
D. Gas/gas
Answer» E.
Discussion
8.

Who discovered extraction?

A. Samuel Percy
B. Fritz Winkler
C. Franz Ritter von Soxhlet
D. Jacques-Arsened Arsonva
Answer» B. Fritz Winkler
Discussion
9.

What is the principle of solvent extraction?

A. Nernst s distribution law
B. Henry s law
C. Raoult s law
D. Dalton s law
Answer» B. Henry s law
Discussion
10.

What method is used for the separation of organic compound from a mixture of compound?

A. Distillation
B. Extraction
C. Sieving
D. Boiling
Answer» C. Sieving
Discussion