Question # 1

How many % age of nitrogen in urea fertilizers?

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40.6

45.6

46.6

50

The residual oil is heated above 400 c to produce.

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Lubricants

Paraffin wax

Asphalt

All

Imperial chemical industries was established in.

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1942

1944

1950

1990

Metallurgy involves which of the following steps?

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Mining and enrichment

Reduction

Refining and casting.

All of these

Ammonia is prepared by:

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Solvay's process

Haber's process

Floatation process

Bayer's process

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

The number of carbon atoms present in petroleum ether.

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1-5

2-5

3-7

5-7

Ammonical brine is prepared by dissolving ammonia gas in.

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NaCl

CaCO₃

CaCl₂

Na₂SO₄

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

Petroleum fraction having composition C₅ to C₇ is.

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Petroleum Gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

Chemical formula of copper glance is:

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Cu2O

Cu2S

CuFeS2

CuSO4

Formula of Urea is.

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KCNO

H₂N-CO-NH₂

HN-CO₂-NH

H₃N-CO-NH₃

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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers

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