Explore topic-wise MCQs in Engineering Chemistry.

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

1.

The specific volume ratios of W, Cr and Ni are 3.6, 2.0 and 1.6 respectively. Which of them will have the least rate of corrosion?

A. Ni
B. Cr
C. W
D. All will have the same rate of corrosion
Answer» D. All will have the same rate of corrosion
Discussion
2.

Excessive corrosion of metal takes place if corrosion product is ___________

A. Volatile
B. Non-volatile
C. Both volatile as well as non-volatile
D. Initially volatile and then non-volatile
Answer» B. Non-volatile
Discussion
3.

Corrosion of zinc can be minimized by increasing the pH to ___________

A. 9
B. 10
C. 11
D. 12
Answer» D. 12
Discussion
4.

Rate of corrosion of anodic region is inversely proportional to the ___________

A. Cathodic area
B. Anodic area
C. Product of anodic area and cathodic area
D. Sum of anodic area and cathodic area
Answer» C. Product of anodic area and cathodic area
Discussion
5.

Which of the following factor influences the rate and extent of corrosion?

A. Nature of metal only
B. Nature of the environment only
C. Both nature of metal and environment
D. Nature of reaction
Answer» D. Nature of reaction
Discussion