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Free download in PDF Class 11 Chemistry Chapter 14 Environmental Chemistry Multiple Choice Questions and Answers for Board, JEE, NEET, AIIMS, JIPMER, IIT-JEE, AIEE and other competitive exams. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The substance which is a primary pollutant?
[A]
H2SO4
[B]
CO
[C]
PAN
[D]
Aldehydes
(2)
Why certain parts of water bodies contain more number of algae?
[A]
Due to favorable environment
[B]
Due to run-off excess fertilizers
[C]
Due to lack of fertilizers
[D]
Due to water pollution
Answer: Due to run-off excess fertilizers
(3)
Which of the following is produced by a reaction of ultraviolet light?
[A]
CO2
[B]
SO2
[C]
O3
[D]
NO3
(4)
Synthesis of ethanal commercially from which of the following reagent is the part of green chemistry?
[A]
CH3CH2OH
[B]
CH2 = CH2
[C]
HC ≡ CH
[D]
All of these
(5)
Identify the wrong statement in the following:
[A]
Acid rain is mostly because of oxides of nitrogen and sulphur
[B]
Chlorofluorocarbons are responsible for ozone layer depltion
[C]
Greenhouse effect is responsible for global warming
[D]
Ozone layer does not permit infrared radiation from the sun to reach the earth.
Answer: Ozone layer does not permit infrared radiation from the sun to reach the earth.
(6)
Photochemical smog is related to pollution if
[A]
Air
[B]
Water
[C]
Soil
[D]
None of these
(7)
Which of the following is responsible for depletion of ozone layer in the upper strata of the atmosphere?
[A]
Polyhalogens
[B]
Ferrocene
[C]
Fullerencs
[D]
Freons.
(8)
A disease caused by eating fish contaminated by industrial waste, containing mercury compounds, is called as
[A]
Minamata disease
[B]
Brights disease
[C]
Hashimotos disease
[D]
Osteosclerosis
(9)
The false statement among the followings:
[A]
The average residence time of NO is one month.
[B]
Limestone acts as a sink for SOx.
[C]
SOx can be removed from flue gases by passing through a solution of citrate ions.
[D]
Ammonia acts as a sink for NOx.
Answer: Ammonia acts as a sink for NOx.
(10)
Which of the following acts as a sink for CO?
[A]
Plants
[B]
Haemoglobin
[C]
Microorganisms present in the soil
[D]
Oceans
Answer: Microorganisms present in the soil
(11)
What is the indicator of pollution in water?
[A]
Amount of oxygen
[B]
Amount of hydrogen
[C]
Amount of BOD
[D]
Amount of nitrogen
(12)
One of the following is the chief source of water and soil pollution
[A]
Agro industry
[B]
Mining
[C]
Thermal power stations
[D]
All of these
Answer: Thermal power stations
(13)
Which is most harmful for life on globe?
[A]
Deforestation
[B]
Soil Erosion
[C]
Increasing Desert
[D]
Nuclear Fallout.
(14)
Domestic waste mostly constitutes
[A]
Non-biodegradable pollution
[B]
Biodegradable pollution
[C]
Effluents
[D]
Air pollution
Answer: Biodegradable pollution
(15)
Which of the following acts as a sink for CO?
[A]
Plants
[B]
Haemoglobin
[C]
Microorganisms present in the soil
[D]
Oceans
Answer: Microorganisms present in the soil
(16)
Photochemical smog is related to pollution if
[A]
Air
[B]
Water
[C]
Soil
[D]
None of these
(17)
Which of the following is responsible for depletion of ozone layer in the upper strata of the atmosphere?
[A]
Polyhalogens
[B]
Ferrocene
[C]
Fullerencs
[D]
Freons
(18)
The most harmful air pollutant produced by automobiles is
[A]
HNO3
[B]
NO
[C]
SO2
[D]
CO
(19)
Fluorosis, the bone disease, is caused by the presence of
[A]
Pesticides in water
[B]
Fluorides in water
[C]
Carbon monoxide in air
[D]
Sulphur dioxide in air
Answer: Fluorides in water
(20)
The agricultural field that produces maximum methane gas into atmosphere is
[A]
Wheat field
[B]
Paddy field
[C]
Cotton field
[D]
Groundnut field
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