Question # 1

The boiling point of water is.

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100^oC

4^oC

0^oC

25^oC

Temporary hardness of water is removed by adding.

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Ca(OH)₂

NaOH

KOH

CaSO₄

Inland water includes.

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River

Lakes

Streams

All of them

Sodium zeolite is resin of:

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NaAl(SiO₃)₂

KAl(SiO₃)₂

LiAl(SiO₃)₂

RbAl(SiO₃)₂

Which one of the following salts makes the water permanently hard?

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NaCO₃

NaHCO₃

CA(HCO₃)₂

CaSO₄

Hook warm larvae enter the body through.

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Food

Water

Skin

All of them

Permanent hardness can be removed by using .

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Soda lime

Sodium Zeolite

Quick lime

Lime water

Calcium carbonate is in water.

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Insoluble

Sparingly

None of them

Soluble

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

All of them

Which of the following gas is used to destroy harmful bacteria in water.

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Iodine

Chlorine

fluorine

Bromine

At which temperature o water shows mxamimum density.

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0 ^oC

100^oC

4^oC

-4^oC

Cholera is caused by

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Protozoa

Virus

Bacteria

Fungi

Which disease cause liver inflammation?

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Typhoid

Jaundice

cholera

Hepatitis

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