10th Class Chemistry Chapter 8 English Medium Online MCQ Test With Answer

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MCQ's Test For Chapter 8 "Chemical Industries"

Try The MCQ's Test For Chapter 8 "Chemical Industries"

  • Total Questions12

  • Time Allowed15

Chemical Industries

00:00
Question # 1

Catalyst used in Haber's process is:

Question # 2

When CO2 is passed through the ammonical brine the only salt that precipitates is:

Question # 3

The number of carbon atoms present in petroleum ether.

Question # 4

Which one of the ore of copper?

Question # 5

Petroleum fraction having composition C5 to C7 is.

Question # 6

Blast furnace usually used for the metallurgy of.

Question # 7

The process of roasting during metallurgy of copper is carried out in a special furnace called.

Question # 8

When NaHCO3 is heated it forms.

Question # 9

Formula of Urea is.

Question # 10

The residual oil is heated above 400 c to produce.

Question # 11

Ammonia is prepared by the process .

Question # 12

Formula of baking soda is.

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Sr.# Question Answer
1 Process of heating the concentrated ore to high temperature in excess of air is called.
A. Roasting
B. Smelting
C. Bessemerization
D. All
2 Formula of baking soda is.
A. Na2CO3
B. NaHCO3
C. Na2SO4
D. Na2PO4
3 On which bases froth floatation process take place?
A. Density bases
B. Concentration basis
C. Watting basis
D. None of these
4 Blonde hair contains compounds of:
A. molybdenum
B. iron
C. titanium
D. copper
5 At the time of partition, How many industries wee present in Pakistan.
A. 30
B. 32
C. 34
D. 40
6 How many % age of nitrogen present in air by volume?
A. 70%
B. 75%
C. 78%
D. 80%
7 When CO2 is passed through the ammonical brine the only salt that precipitates is:
A. NaHCO3
B. NH4HCO3
C. Na2CO3
D. (NH4)2CO3
8 In the bessemerization process.
A. Roasted ore is beated.
B. Molten matte is removed.
C. Molten matte is heated
D. Molten matte is added
9 The number of carbon atoms present in gasoline or petrol.
A. 5-10
B. 6-10
C. 7-10
D. 8-10
10 How many units are in Pakistan for manufacturing of Urea.
A. 3
B. 6
C. 9
D. 12
11 Metallurgy involves which of the following steps?
A. Mining and enrichment
B. Reduction
C. Refining and casting.
D. All of these
12 Which contains sufficient amount of metal?
A. Mineral
B. Ores
C. Rocks
D. Soil

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