Question # 1

Red hair contains compound of.

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Iron

copper

titanium

Molybdenum

In forth flotation process the ore particles are preferentially wetted by:

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water

oil

benzene

petrole

Froth flotation process is used to concentrate the ore on:

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Density basis

Concentration basis

Wetting basis

Magnetic basis

Concentration is process of:

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Mixting technique

Separating technique

Boiling technique

Cooling techique

Brown hair contains.

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Iron compound

Copper compound

titanium compound

Both a and b

Blast furnace usually used for the metallurgy of.

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Iron

Copper

Aluminum

Both a and b

Which one of the following organic compound is found is gasoline?

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C₂H₄

C₃H₈

C₇H₁₀

C₁₂H₂₆

In the bessemerization process.

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Roasted ore is beated.

Molten matte is removed.

Molten matte is heated

Molten matte is added

Manufacturing of urea involves:

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2 steps

3 steps

4 steps

5 steps

Concentration of the copper ore is carried out by:

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Calcinations

Roasting

Forth flotation

Distillation

Metallurgy involves which of the following steps?

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Mining and enrichment

Reduction

Refining and casting.

All of these

Which one is not the fraction of residual oil?

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Paraffin wax

Asphalt

Fuel oil

Coke

In smelting process a small amount of coke is required because:

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it is highly endothermic process

it is highly exothermic process

it is very fast process

it is very slow process

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