Question # 1

Extraction of metals from its ores is called.

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Metallurgy

Mining

Griding

All

Manufacturing of urea involves:

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2 steps

3 steps

4 steps

5 steps

Catalyst used in Haber's process is:

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Ni

Fe

Cu

Zn

When crude oil is heated in the fractionating tower:

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Vapour of higher boiling point fraction condense first in the lower part of the tower.

Vapours of lower boiling point fraction condense first in the lower part of tower.

Vapour of higher boiling point condense lather in the upper part of tower.

Vapours of higher boiling point never condense.

Blast furnace usually used for the metallurgy of.

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Iron

Copper

Aluminum

Both a and b

Raw materials used in Solvay's process.

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Brine

Lime stone

Ammonia gas

All

Chalco-pyite is an ore of:

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iron

aluminium

silver

copper

In the bessemerization process.

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Roasted ore is beated.

Molten matte is removed.

Molten matte is heated

Molten matte is added

Imperial chemical industries was established in.

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1942

1944

1950

1990

Which one of the ore of copper?

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Copper glance

Chalcopyrite

Both a and b

None of these

A saturated solution of sodium chloride is called.

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Brine

Suspension

Colloidal

None of these

the chemical formula of chalcopyrite is:

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Cu₂S

CuFe₂S

CuS

FeS

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

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