1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

Match the species in Column I with their types in Column II.

Column I Column II
A. DDT 1. Photochemical smog
B. NaClO$$_3$$ 2. Disinfectant
C. Cl$$_2$$ 3. Herbicides
D. PAN 4. Pesticides

A
A $$\to$$ 4, B $$\to$$ 3, C $$\to$$ 2, D $$\to$$ 1
B
A $$\to$$ 1, B $$\to$$ 2, C $$\to$$ 3, D $$\to$$ 4
C
A $$\to$$ 2, B $$\to$$ 3, C $$\to$$ 1, D $$\to$$ 4
D
A $$\to$$ 3, B $$\to$$ 1, C $$\to$$ 2, D $$\to$$ 4
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

The process of 'eutrophication' is due to the

A
increase in concentration of insecticide in H2O.
B
increase in concentration of fluoride ion in H2O.
C
reduction in concentration of the dissolved oxygen in water due to phosphate pollution in water.
D
attack of younger leaves of a plant by peroxyacetyl nitrate
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