Question # 1

The percentage of water in human body is about:

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60%

50%

70%

80%

Water molecule has a structure:

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Ionic

Non polar

Tetrahedral

Polar

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

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Condensatin

Transpiration

Capillary action

Evaporation

Permanent hardness is removed by adding.

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Na₂ zeolite.

Soda lime

Lime water

Quick lime

The removal of Mg⁺² and Ca⁺² Ion which are responsible for the hardness of water is called.

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Temporary hardness

Permanent hardness

Water softening

Hydrogen bonding

The percentage of water in human body is.

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40%

50%

60%

70%

Which process is responsible for ascending of water in roots:

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evaporation

transpiration

condensation

capillary action

Acute lead poisoning causes dysfunction of.

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Kidney

Liver

CNS

All of them

Which one of the following disease causes severe diarrhea and can be fatal:

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Jaundic

Dysentery

Cholera

Typhoid

Which disease cause liver inflammation?

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Typhoid

Jaundice

cholera

Hepatitis

Water has a maximum density at .

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10^oC

0^oC

4^oC

100^oC

Mg²⁺ and Ca²⁺ ions react with soap to form calcium and magnesium salts of fatty acids called.

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Gelatin

Scum

Paste

None of them

Which disease cause when humans use water of industrial effluents.

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Cancer

Asthma

Jaundice

cholera

The boiling point of water is.

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100^oC

4^oC

0^oC

25^oC

Which one of the properties of water is responsible for rising of water plants?.

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Specific heat capacity

Surface tension

Excellent solvent action

Capillary action.

Water molecule show structure.

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Tetrahedral

Trigonal

Pentagonal

All of them

The process by which water rises up from the roots of plants to leaves is called.

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Photosynthesis

Respiration

Surface tension

Capillary action

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