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ECAT Chemistry Chapter 27 Environmental Chemistry
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 27 Environmental Chemistry
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Question # 1
Ozone hole refers to
Question # 2
Ozone layer of stratosphere requires protection from indiscriminate use of
Question # 3
Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called
Question # 4
Chromium (VI) is highly toxic and can cause
Question # 5
Pick up the correct statement
Question # 6
In Antarctica ozone depletion is due to the formation of following compound
Question # 7
Ozone hole is maximum over
Question # 8
The toxic organic compounds and heavy metals and metalloids results in contamination of
Question # 9
BOD is
Question # 10
Shahi Qilla may be destroyed by
Question # 11
Acid rains are produced by
Question # 12
In water the most important oxidizing agent is dissolved molecular oxygen which ranges from
Question # 13
Ozone in most of the tropical regions acts as a pollutant and causes
Question # 14
Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone
Question # 15
The % of CO2is the atmosphere is
Question # 16
Most hazardous metal pollutant of automobile exhaust is
Question # 17
Ozone depletion in stratosphere shall result in
Question # 18
Atomospheric pollutant is
Question # 19
CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy
Question # 20
Which of the following is not an air
Question # 21
Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due
Question # 22
A pollutant affects
Question # 23
When chlorofluoro carbon are subjected to U.V. they form
Question # 24
In incinerating the waste is burnt at
Question # 25
Environmental pollution affects
Question # 26
Water which his considered to be safe for human consumption is known as
Question # 27
Carbon monoxide is harmful to human beings as it
Question # 28
Industrial effuents have toxic synthetic organic compounds as well as heavy metals like
Question # 29
Which one is the major reason for pollution in high cities?
Question # 30
Acid rain is due to increase in atmospheric concentration of
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.