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Environmental Chemistry - Set 15
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NUST Entrance Test
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Chemistry
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Environmental Chemistry
Set 15
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Mashaal Masha
Nov 08, 2022
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Choose the correct options for the following questions.
Chlorinating agent most commonly used in disinfection of water is now-a-days:
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Difficulty: Easy
A:
Chlorine
B:
HOCl
C:
Calcium hypochlorite
D:
All of these
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Substance(s) used for disinfecting water is(are):
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Difficulty: Easy
A:
Chlorine
B:
HOCl
C:
Calcium hypochlorite
D:
Calcium hypochlorite and chlorine both
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