Chemical Industries Test 03

Total Questions: 21

1 - The fraction of petroleum which condenses first in the fractioning column:

A ) Gasoline
B ) Kerosene
C ) Diesel oil
D ) Fuel oil ✅

2 - Paraffin wax and asphalt are important fractions of:

A ) Fuel oil
B ) Diesel oil
C ) Kerosene oil
D ) Residual oil ✅

3 - Which of the following is not a use of petroleum gas:

A ) Production of carbon black
B ) Manufacture of fertilizers
C ) Use as domestic fuel ✅
D ) Use in the form of LPG

4 - Boiling range of Diesel oil is:

A ) 35 to 400°C
B ) 250 to 350°C ✅
C ) 170 to 250°C
D ) 80 to 170°C

5 - Fraction of petroleum which boils up to 25°C is:

A ) Gasoline
B ) Kerosene oil
C ) Petroleum ether
D ) Petroleum gas ✅

6 - Which of the following is used for dry cleaning purpose?

A ) Petroleum ether
B ) Gasoline
C ) Both (a) & (b)
D ) None of these

7 - Petroleum is a complex mixture of:

A ) Gaseous hydrocarbons
B ) Liquid hydrocarbons
C ) Solid hydrocarbons
D ) All of these

9 - Electrolyte used in electrolytic refining of copper is:

A ) Copper oxide
B ) Copper sulphate ✅
C ) Copper carbonate
D ) Copper sulphide

10 - During Bessemerization, Ferrous sulphide is oxidized to:

A ) Ferric sulphate
B ) Ferrous sulphate
C ) Ferric oxide
D ) Ferrous oxide ✅

11 - Heating roasted ore with sand flux and coke is a process:

A ) Endothermic
B ) Exothermic ✅
C ) Spontaneous
D ) None of these

13 - Bessemerization of copper is carried out in:

A ) Blast furnace
B ) Bessemer converter
C ) Bessemer furnace ✅
D ) Magnetic separator

14 - Blister copper consists of ____ pure copper:

A ) 92%
B ) 95%
C ) 98% ✅
D ) 99%

15 - First stage involved in metallurgical process is:

A ) Extraction of metals
B ) Roasting
C ) Concentration of ore
D ) Electro-refining ✅

17 - Process based on the wetting characteristics of ore is called:

A ) Electrolytic separation ✅
B ) Smelting
C ) Froth flotation
D ) Gravity separation

18 - Process of removal of gangue from ore is called:

A ) Concentration ✅
B ) Mixing
C ) Metallurgy
D ) Extraction

19 - Which of the following is used in ships and industries to heat boilers and furnace?

A ) Fuel oil ✅
B ) Diesel oil
C ) Kerosene oil
D ) Petrol

20 - Petroleum fraction having composition C1 to C4 is called:

A ) Petroleum gas
B ) Petroleum ether
C ) Gasoline or Petrol ✅
D ) Kerosene oil

21 - Which one of the following petroleum fractions is used as laboratory solvent?

A ) Kerosene oil ✅
B ) Diesel oil
C ) Petroleum ether
D ) Fuel oil