Question # 1

Matte is a mixture of:

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FeS and CuS

Cu₂O and FeO

Cu₂S and FeS

CuS and FeO

Ammonia is prepared by:

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Solvay's process

Haber's process

Floatation process

Bayer's process

Chalco-Pyrite is an ore of:

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Copper

Silver

Iron

Aluminium

Which one of the not metal.

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Copper

Carbon

chromium

Iron

The number of carbon atoms present in gasoline or petrol.

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5-10

6-10

7-10

8-10

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

How many % age of nitrogen in urea fertilizers?

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40.6

45.6

46.6

50

Which one of the following is not a fraction of petroleum?

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Kerosene oil

Diesel oil

Alcohol

Petrol

Red hair contains compound of.

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Iron

copper

titanium

Molybdenum

The impurities associated with the minerals are known as:

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Metallurgy

Ores

Gangue

Compounds

Which one of the ore of copper?

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Copper glance

Chalcopyrite

Both a and b

None of these

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Chemistry 10th Class English Medium Unit 16 Online Test MCQs With Answers

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