Question # 1

How many times the heat capacity of water is greater than that of rocks.

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Two

Three

Four

Six

Which process is responsible for ascending of water in roots:

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evaporation

transpiration

condensation

capillary action

The chemical used in Clark's method is:

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CaO

slaked lime(Ca(OH)s)

washing soda

sodium zeolite

The percentage of ocean in world water is.

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50%

67%

97%

25%

Water has a maximum density at 4 ^oC

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12 cm^-3

2 g cm^-3

1 g cm^-3

4 gcm^-3

Permanent hardness is removed by adding.

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Na₂ zeolite.

Soda lime

Lime water

Quick lime

The percentage of water in human body is about:

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60%

50%

70%

80%

Gypsum in water is.

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Sparingly soluble

Insoluble

Highly soluble

None of them

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

Neurological damage is caused by the poisoning of.

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Lead

Cadimium

Mercury

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

the removal of which ion causes water softening.

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Na⁺

Mg²

Li⁺

K⁺

Cholera is caused by

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Protozoa

Virus

Bacteria

Fungi

Which of the following salt is soluble in water.

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NaCl

KCl

Na₂SO₄

All of them

Which one of the diseases causes severe diarrhea and can be fatal?

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Jaundice

Dysentery

Cholera

Typhoid

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.

Acute lead poisoning causes dysfunction of.

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Kidney

Liver

CNS

All of them

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