Engineering Chemistry II Mock Test 9

10%

Question 1 of 10

1. Drying oils are used as the medium of paints and varnishes.

True

False

Question 1 of 10

Question 2 of 10

2. Identify the type of electrolyte: NaCl, acetic acid.

Strong, Weak

Weak, Weak

Weak, Strong

Strong, Strong

Question 2 of 10

Question 3 of 10

3. Which of the following is an example of fats?

Coconut oil

Vegetable ghee

Groundnut oil

Glyceryl trioleate

Question 3 of 10

Question 4 of 10

4. Which of the following tells the amount of free fatty acids present in fat or oil?

Iodine number

Saponification number

Acid number

Richert-Meissl number

Question 4 of 10

Question 5 of 10

5. What is the life span of a general metal electrolyte?

1 hour

3 hours

5 hours

2 hours

Question 5 of 10

Question 6 of 10

6. The smaller is the saponification value, the higher will be the molecular weight of oil or fat.

False

True

Question 6 of 10

Question 7 of 10

7. If the temperature of cadmium bath is maintained at 400 K and the concentration of cadmium is 70 g, calculate the pressure at that temperature (given, the gas constant is 8.314 J /mol. • K).

39.40

47.50

49.2

Question 7 of 10

Question 8 of 10

8. Saucepans can be prepared through electrolysis of __________________

Nickel

Galvanized zinc

Chromium

Copper

Question 8 of 10

Question 9 of 10

9. Which of the following is wrong about the working conditions of electroplating?

Temperature follows a steady state

Pressure is neglected

Pressure is compressed

Pressure follows a steady state

Question 9 of 10

Question 10 of 10

10. Lubricant act as a coolant to carry away heat.

False

True

Question 10 of 10