MEDIUM
JEE Main
IMPORTANT
Earn 100

The anion/anions that make/makes the water sample unsuitable for drinking, in which ppm level concentration of is/ are:
(a)Only
(b)Only
(c)Both and
(d)Only

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Important Questions on Environmental Chemistry
EASY
JEE Main
IMPORTANT
Suppose it rains during a thunderstorm. The collected rainwater has a value

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JEE Main
IMPORTANT

EASY
JEE Main
IMPORTANT

MEDIUM
JEE Main
IMPORTANT

MEDIUM
JEE Main
IMPORTANT

EASY
JEE Main
IMPORTANT
Brown haze produced in photochemical smog is due to:

MEDIUM
JEE Main
IMPORTANT
Choose the CORRECT option in the given following statements:
(I) Clean water contains value more than
(II) The soluble ion makes the enamel on teeth into much harder as it converts hydroxyapatite into much harder fluorapatite.
(III) When the of the rain water drops below , it is called acid rain

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JEE Main
IMPORTANT
