Question # 1

How many units are in Pakistan for manufacturing of Urea.

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3

6

9

12

Who put forward the vital force theory?

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Berzelius

Wohler

Dalton

Lavoisier

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

Rapid growth of algae in water bodies is because of detergent having.

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Carbonate salts.

Sulphonic acid salts.

Sulphate salts.

Phosphate salts.

Which is a hereditary material?

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DNA

RNA

Protein

All of them

Which is not an air pollutant?

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CO₂

CO

SO₂

NH₃

Phenolphthalein produces red colour in

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Acid

Base

Both a and b

None of these

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

Halogenation of alkanes in the presence of diffused sunlight takes place.

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Suddenly, only in one step

Slowly in one step

In a series of step

Fastly in two steps

Vibrious cholera causes.

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Choleera

Dysentery

Fluorsis

Hepatitis

Normally rain water is weakly acidic because of.

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SO₃ gas.

CO₂gas.

SO₂gas.

NO₂gas.

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

All of them

Which gas protects the Earth's surface from ultraviolet radiations?

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CO₂

CO

N₂

O₃

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