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

Question # 1

The percentage of ocean in world water is.

Choose an answer

50%

67%

97%

25%

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Question # 2

Which process is responsible for ascending of water in roots:

Choose an answer

evaporation

transpiration

condensation

capillary action

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Question # 3

Temporary hardness is because of .

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Ca(HCO₃)₂

CaCO₃

MgCO₃

MgSO₄

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Question # 4

Which one of the following diseases causes liver inflammation?

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Typhoid

Jaundice

Cholera

Hapatitis

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Question # 5

Which ion cause water hardness?

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Al²

Mg²

Fe²

Na²

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Question # 6

Ionic compounds are soluble in water due to:

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Hydrogen bonding

ion-dipole forces

Dipole-dipole forces

Dipole -induced dipole forces

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Question # 7

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

Choose an answer

Condensatin

Transpiration

Capillary action

Evaporation

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Question # 8

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

Choose an answer

Joundice

Cholera

Dysentery

Typhoid

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Question # 9

Which disease cause when humans use water of industrial effluents.

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Cancer

Asthma

Jaundice

cholera

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Question # 10

Which element protects teeth from decay?

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Potassium

Fluorine

Sodium

Calcium

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Question # 11

Water molecule has a structure:

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Ionic

Non polar

Tetrahedral

Polar

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Question # 12

Which of the following in soluble in water.

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Organic acids

Glucose

Alcohal

All of them

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Question # 13

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

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Specific heat capacity

Viscosity

Excellent solvent action

Capillary action

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