Question: Which of the following substances are commonly used in a filter?
[A].Charcoal
Sand
Both (a) and (b)
Aluminum chloride
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
QuizMaster
Calgon is used for removal of
Question: Calgon is used for removal of
[A].sodium carbonate
permanent hardness of water
potassium carbonate
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Hardness of water does not
Question: Hardness of water does not
[A].have any bad effect in boiler
make cooking of foods difficult
make it unfit for drinking
cause difficulty in the washing of clothes with soaps
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Which of the following physical method is used as germicidal in modern time for the treatment of drinking water?
Question: Which of the following physical method is used as germicidal in modern time for the treatment of drinking water?
[A].Chlorination
Treating with potassium permagnate
UV radiation
Treating with bleaching powder
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with
Question: Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with
[A].10% calcium chloride solution
10% magnesium sulfate solution
10% magnesium chloride solution
10% sodium chloride solution
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Zeolite softening process removes both temporary and permanent hardness of water. In this process the calcium and magnesium present in water are precipitated as
Question: Zeolite softening process removes both temporary and permanent hardness of water. In this process the calcium and magnesium present in water are precipitated as
[A].insoluble carbonates
insoluble zeolites
insoluble chlorides
insoluble sulfates
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Zeolite softening process removes
Question: Zeolite softening process removes
[A].only temporary hardness of water
only permanent hardness of water
both temporary and permanent hardness of water
the dissolved gases in permanent hard water
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Permanent hard water may be softened by passing it through
Question: Permanent hard water may be softened by passing it through
[A].sodium silicate
sodium bicarbonate
sodium hexametaphosphate
sodium phosphate
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Permanent hardness of water may be removed by the addition of
Question: Permanent hardness of water may be removed by the addition of
[A].lime
soda ash
potassium permagnate
sodium bicarbonate
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Both temporary and permanent hardness of water can be removed on boiling water with
Question: Both temporary and permanent hardness of water can be removed on boiling water with
[A].calcium hydroxide
sodium carbonate
calcium oxide
calcium carbonate
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.