Question # 1

Permanent hardness can be removed by using .

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Soda lime

Sodium Zeolite

Quick lime

Lime water

Water has a maximum density at .

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10^oC

0^oC

4^oC

100^oC

Freezing point of water is:

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-4°C

0°C

-36°C

-58°C

Temporary hardness of water is removed by adding.

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Ca(OH)₂

NaOH

KOH

CaSO₄

Hook worm infects.

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Liver

Small intestine

Large intestine

Stomach

Which one of the following diseases causes liver inflammation?

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Typhoid

Jaundice

Cholera

Hapatitis

Calcium carbonate is in water.

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Insoluble

Sparingly

None of them

Soluble

The bond angle between H-O-H in water is:

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104.5^o

104.6^o

104.7^o

104.8^o

Specific Heat capacity of water is about.

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4.0 Jg^-1 K^-1

4.1 Jg^-1K^-1

4.2 Jg^-1K^-1

4.3 Jg^-1K^-1

Sodium zeolite is naturally occurring reason of .

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NaAl (SiO₃)₂

Na₂CO₃

CaCO₃

Na₂SIO₃

Which process is responsible for ascending of water in plants from roots to leaf?

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Condensatin

Transpiration

Capillary action

Evaporation

Which disease cause when humans use water of industrial effluents.

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Cancer

Asthma

Jaundice

cholera

Which of the following in insoluble in water.

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Benzene

NaCl

KCl

All of them

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