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JEEMAIN and NEET
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Chemistry
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Environmental Chemistry
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Q)
A good quality of water will have
(
a
)
H
i
g
h
D
O
(
b
)
H
i
g
h
B
O
D
(
c
)
H
i
g
h
C
O
D
(
d
)
H
i
g
h
T
L
V
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