Environmental Chemistry
2 Questions
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2022
Q1
BITSAT
MCQ
11 Jun 2026
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
2020
Q2
BITSAT
MCQ
11 Jun 2026
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