Question # 1

the removal of which ion causes water softening.

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Na⁺

Mg²

Li⁺

K⁺

soap is the sodium salt of long chain.

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Amino acids

Fatty acids

Nucleotides

None of them

Fertilizers are used to make up the deficiency of;

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oxygen and carbon

iron and magnesium

nitrogen and phosphorus

hydrogen and calcium

Freezing point of water is:

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-4°C

0°C

-36°C

-58°C

Permanent hardness can be removed by using .

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Soda lime

Sodium Zeolite

Quick lime

Lime water

How many percentage to water contains oceans?

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67%

77%

87%

97%

Rapid growth of algae in water bodies in because of detergent having.

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Carbonat salt

Sulphonic acid

Sulphat salt

Phosphate salt

Temporary hardness of water is removed by adding.

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Ca(OH)₂

NaOH

KOH

CaSO₄

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

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Joundice

Cholera

Dysentery

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.

Sodium zeolite is naturally occurring reason of .

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NaAl (SiO₃)₂

Na₂CO₃

CaCO₃

Na₂SIO₃

Swimming pools are cleaned by the process.

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Chlorination

Hydrogenations

Saponification

None of them

Water molecule had a structure;

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non-polar

polar

ionic

tetrahedral

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

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