Chemical Industries Test 02

Total Questions: 24

3 - A saturated solution of sodium chloride is called:

A ) brine ✅
B ) suspension
C ) Colloid
D ) none of these

4 - Raw materials used in Silvay's process are:

A ) brine
B ) lime stone
C ) ammonia gas
D ) all of these

5 - How much % age of nitrogen is in urea fertilizer?

A ) 40.6
B ) 45.6
C ) 46.6 ✅
D ) 50

6 - The raw materials for the manufacturing of urea are:

A ) ammonia
B ) carbon dioxide
C ) limestone
D ) both (a) and (b)

7 - Ammonia is prepared by the process:

A ) Ostwald
B ) Haber ✅
C ) Clark
D ) All of these

8 - How much % age of urea is used as fertilizer?

A ) 80%
B ) 90% ✅
C ) 95%
D ) 98%

12 - Gasoline consists of no. of carbon atoms:

A ) 5 to 7
B ) 7 to 10 ✅
C ) 15 to 18
D ) 13 to 15

13 - The number of carbon atoms present in kerosene oil:

A ) 8-12
B ) 9-12
C ) 10-12 ✅
D ) 11-12

14 - The number of carbon atoms present in diesel oil:

A ) 10-15
B ) 11-15
C ) 12-15
D ) 13-15 ✅

15 - The number of carbon atoms present in fuel oil:

A ) 14-18
B ) 15-18 ✅
C ) 16-18
D ) 17-18

16 - Concentration is a separating technique in which ore is separated from:

A ) gangue ✅
B ) silicates
C ) aluminates
D ) all of these

17 - Sodium carbonate is manufactured by:

A ) Haber's process
B ) Ostwald's process
C ) Solvay's process ✅
D ) none of the above

18 - Ammoniacal brine is prepared by dissolving ammonia gas in:

A ) NaCI solution ✅
B ) CaCO3 solution
C ) CaCI2 solution
D ) Na2SO4 solution

19 - The residual oil is heated above 400 °C to produce:

A ) lubricants
B ) paraffin wax
C ) asphalt
D ) all of these

21 - Which of the following has lowest boiling point in crude oil?

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

22 - Petroleum ether is used as:

A ) Fertilizer
B ) Laboratory solvent ✅
C ) Fuel for heavy vehicles
D ) Medicine

23 - Which of the following fractions of petroleum as more volatile than kerosene oil:

A ) Diesel oil
B ) Fuel oil
C ) Gasoline ✅
D ) All of these

24 - Boiling range of Gasoline (petrol) is:

A ) 30 to 80°C
B ) 80 to 170°C ✅
C ) 170 to 250°C
D ) 250 to 350°C