Question # 1

Sea water in unfit for drinking purpose die to the presence of.

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Salts

Algae

Fishes

All of them

At which temperature o water shows mxamimum density.

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0 ^oC

100^oC

4^oC

-4^oC

Mercury poisoning cause:

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neurological damage

high blood pressure

kidney damage

gastro

A sea level the boiling point of water is.

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0^oC

98^oC

100^oC

110^oC

Which of the following in soluble in water.

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Organic acids

Glucose

Alcohal

All of them

The depletion of which gas results in the death of aquatic life.

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Oxygen

Carbon di oxide

Boath of them

Nome of them

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

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Condensatin

Transpiration

Capillary action

Evaporation

Water which produces good lather with soap is called.

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Soft water

Hard water

Heavy water

All of them

How many percentage to water contains oceans?

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67%

77%

87%

97%

Which element protects teeth from decay?

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Potassium

Fluorine

Sodium

Calcium

Industrial effluents are highly

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Toxic organic compounds.

Inorganic salts.

Heavy metals

All of them

The heat capacity of water is.

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4.2 Jg^-1 K^-1

2.1 Jg^-1K^-1

3.2 Jg^-1K^-1

5.9 Jg^-1K^-1

Hard water can cause.

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Stomach disorder

Boiler blasts

Inefficiency of engine

All of them

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10th Class Chemistry Chapter 15 Water English Medium KPK Boards Online Mcqs MCQs With Answers

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