1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The first chlorinated organic insecticide prepared is

A
gammaxene
B
chloroform
C
$\mathrm{COCl}_2$
D
DDT
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statement from the following.

A
Oxides of nitrogen in the atmosphere can cause depletion of the ozone layer.
B
Ozone absorbs the intense ultraviolet radiation of Sun.
C
Depletion of ozone layer is because of its chemical reactions with chlorofluoro alkanes.
D
Ozone absorbs infrared radiation.
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

Which of the following is not a green house gas?

A
CFC
B
CO$$_2$$
C
O$$_2$$
D
NO$$_2$$
4
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Eutrophication causes

A
increase of nutrients in water
B
reduction in water pollution
C
reduction in dissolved oxygen
D
decreases BOD
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