Question # 1

Swimming pools are cleaned by a process:

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Hydrogenation

Bromination

Chlorination

Nitration

Chloroform is used for

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Anesthesia

Fever

Link

Toys

Which one of the followoing is the Hardest coal.

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Peat

Lignite

Bituminous

Anthracite

Margarine is produced by adding hydrogen to vegetable oil at.

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2000 ^oC

100^oC

200^oC

1000^oC

Cholera is caused by

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Protozoa

Virus

Bacteria

Fungi

Formula of Urea is.

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KCNO

H₂N-CO-NH₂

HN-CO₂-NH

H₃N-CO-NH₃

Which of the following can be used as a fuel?

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Methanol

Ethanol

Bio-diesel

All of them

Which one of the following species is not amphoteric?

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H₂O

NH₃

HCO₃

SO₄

Building and Monuments lose their beauty and shine due to

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U.V radiations

Chlorofluoro carbons

Acid rain

IR radiations.

Salt makes the water permanently hard.

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CaSO₄

Ca(HCO₃)₂

NaHCO₃

NaCO₃

The raw materials for the manufacturing of urea are.

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Ammonia

Carbondioxide

Limestone

a & b

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

All of them

Thermosphere lies beyond.

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Stratosphere

Troposphere

Mesosphere

Biosphere

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