MCQs on Corrosion

MCQs on Corrosion

1. Which of the following methods is not used for the prevention of corrosion?

1. greasing
2. painting
3. plating
4. Heating

Answer: (d)

2. Widening of a river valley takes place due to

1. corrosion
2. lateral erosion
3. corrasion
4. hydraulic action

Answer: (b)

3. Elements which have properties of metals and nonmetals are

1. amorphous
2. crystalline
3. metalloids
4. metals

Answer: (c)

4. Corrosion can be prevented by

1. alloying
2. tinning
3. galvanizing
4. all of the above

Answer: (d)

5. Galvanic cells are also named as

1. electrolytic cells
2. battery cells
3. daniel cells
4. john cells

Answer: (a)

6. Voltaic cells generate electricity by

1. spontaneous redox reaction
2. non spontaneous redox reaction
3. sublimation reaction
4. thermochemical reaction

Answer: (a)

7. Galvanization is a method to

1. protect the iron metal from corrosion
2. extract iron from its ore
3. protect food from rancidity
4. improve the ductility property of the metal

Answer: (a)

8. Rusting of iron could take place in

1. distilled water
2. ordinary water
3. distilled and ordinary water
4. none of the above

Answer: (c)

9. Which of the following non-metals is liquid at the room temperature?

1. iodine
2. bromine
3. carbon
4. sulphur

Answer: (b)

10. During roasting which of the following poisonous gas is mainly produced

1. CO
2. CO₂
3. SO₂
4. N₂O

Answer: (c)