Question # 1

Which disease cause when humans use water of industrial effuents.

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Cancer

Asthma

Jaundica

Cholera

Which one of the following salts makes the water permanently hard?

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NaCO₃

NaHCO₃

CA(HCO₃)₂

CaSO₄

Hook warm larvae enter the body through.

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Food

Water

Skin

All of them

Which element do not causes toxicity in water?

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Lead

Arsenic

Sodium

Mercury

Swimming pools are cleaned by a process:

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Hydrogenation

Bromination

Chlorination

Nitration

Which of the following in soluble in water.

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Organic acids

Glucose

Alcohal

All of them

Sodium zeolite is naturally occurring reason of .

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NaAl (SiO₃)₂

Na₂CO₃

CaCO₃

Na₂SIO₃

Sodium zeolite is resin of:

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NaAl(SiO₃)₂

KAl(SiO₃)₂

LiAl(SiO₃)₂

RbAl(SiO₃)₂

Permanent hardness can be removed by using .

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Soda lime

Sodium Zeolite

Quick lime

Lime water

Clark's method is used to remove the hardness of water, in this method which is used.

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Ca(HCO₃)₂

Na-Zeolite

Ca-Zeolite

Ca(OH)₂

Temporary hardness is removed by adding.

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Quick lime

Slaked lime

Lime stone

Lime water.

Temporary hardness is due to the presence of bicarbonates of.

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Calcium

Magnsium

Both of them

None of them

The water which produces good lather with soap is called:

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soft water

hard water

heavy water

typical water

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