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What is the role of chlorine in water purification?

Important Questions on Water

EASY
Science>Chemistry>Water>Purification of Water
Which of the following is considered to be a method of sterlization?
EASY
Science>Chemistry>Water>Purification of Water
The process to remove germs in water is also called sterilisation.
EASY
Science>Chemistry>Water>Purification of Water
Chlorine and ozone are used to kill the germs.
MEDIUM
Science>Chemistry>Water>Purification of Water
The least effective method for the removal of germs from water:
MEDIUM
Science>Chemistry>Water>Purification of Water
Which of the following is a more effective method- Chlorination or ozonization?
MEDIUM
Science>Chemistry>Water>Purification of Water
Give the names of two chemicals that are used to disinfect water.
EASY
Science>Chemistry>Water>Purification of Water
What is permutit? Give its formula?
EASY
Science>Chemistry>Water>Purification of Water
The last step in wastewater treatment is a _____ process.
MEDIUM
Science>Chemistry>Water>Purification of Water
What is the need for water purification of polluted water?
MEDIUM
Science>Chemistry>Water>Purification of Water
Which of the following methods can be used for purification of water?
MEDIUM
Science>Chemistry>Water>Purification of Water
Explain how exposure of water to air and sunlight purify water? To what extent this method is effective?
MEDIUM
Science>Chemistry>Water>Purification of Water
Which among the following is not a sterilization method of water?
MEDIUM
Science>Chemistry>Water>Purification of Water
Which method of water purification does not kill microorganisms?
MEDIUM
Science>Chemistry>Water>Purification of Water
Ozonization of water removes which of the following impurities?
EASY
Science>Chemistry>Water>Purification of Water
Chlorine is frequently used to treat water.
MEDIUM
Science>Chemistry>Water>Purification of Water
Which of the following is used as a disinfectant?
MEDIUM
Science>Chemistry>Water>Purification of Water
During purification of water in the waterworks department, germs are killed in this step:
HARD
Science>Chemistry>Water>Purification of Water
Why should cooking oil, ghee, and fats not be poured down the drains? 
MEDIUM
Science>Chemistry>Water>Purification of Water
Which of the following methods is not a household method that is used to make water safe for drinking?
MEDIUM
Science>Chemistry>Water>Purification of Water
Between chlorination and ozonization of water, which is a more effective method? Why?