Explore topic-wise MCQs in Applied Chemistry.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

The corrosion problems are caused by _________ in lubricating oil.

A. Potassium chloride
B. Naphthenic acid
C. Sodium chloride
D. Carbon dioxide
Answer» C. Sodium chloride
Discussion
2.

The total acid number of an oil is given by __________

A. Acid value = (volume of 0.1N KOH taken*56)/(weight of oil used)
B. Acid value = (volume of 0.01N KOH used*56)/(weight of oil taken)
C. Acid value = (volume of 0.1N KOH used*56)/(weight of oil taken)
D. Acid value = (volume of 0.01N KOH taken*56)/(weight of oil used)
Answer» D. Acid value = (volume of 0.01N KOH taken*56)/(weight of oil used)
Discussion
3.

The neutralisation number is increased due to _________

A. Pureness
B. Contamination
C. Hydrolysis
D. Catalysis
Answer» C. Hydrolysis
Discussion
4.

Periodic determination of acid number is useful to indicate the progress of ________

A. Oxidation number
B. Reduction number
C. Acidic number
D. Neutralisation number
Answer» B. Reduction number
Discussion
5.

Acid number of a lubricating oil is _________ required to neutralise all acidic constituents of 1 g of oil.

A. Mgs of KOH
B. Mgs of K<sub>2</sub>SO<sub>4</sub>
C. Mgs of NaOH
D. Mgs of Na<sub>2</sub>SO<sub>4</sub>
Answer» B. Mgs of K<sub>2</sub>SO<sub>4</sub>
Discussion