MCQ Questions for Class 11 Chemistry Chapter 14 Environmental Chemistry with Answers

Environmental Chemistry Class 11 Chemistry MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 14 Environmental Chemistry with Answers Pdf free download. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. We have Provided Environmental Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 11 Chemistry Chapter 14 Quiz

Class 11 Chemistry Chapter 14 MCQ Online Test

You can refer to NCERT Solutions for Class 11 Chemistry Chapter 14 Environmental Chemistry to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Environmental Chemistry Class 11 Chemistry MCQ online test

Q1.	Who sediment of suspended matter occurs?
	A.When soil is eroded from the air
	B.When soil is eroded from the land
	C.When soil is eroded from the water
	D.When soil is eroded from the rock

Ans: When soil is eroded from the land

Q2.	A secondary pollutant is?
	A.O₃
	B.CO
	C.CH₄
	D.Pb

Ans: O₃

Q3.	Which is most harmful for life on globe?
	A.Deforestation
	B.Soil Erosion
	C.Increasing Desert
	D.Nuclear Fallout

Ans: Nuclear Fallout

Q4.	Excess nitrate in drinking water can cause
	A.methemoglobinemia
	B.kidney damage
	C.liver damage
	D.laxative effect

Ans: methemoglobinemia

Q5.	What is the main reason for thermal pollution?
	A.Increase in the temperature of the ecosystem
	B.Increase in the chemical contains in water
	C.Hot water released by power plants and industries
	D.Pollution causing by vehicles

Ans: Hot water released by power plants and industries

Q6.	Water sample is reported to be highly polluted if BOD (Biological Oxygen Demand) value of sample becomes
	A.more than 17 ppm.
	B.equal to 10 ppm.
	C.equal to 5 ppm.
	D.less than 5 ppm.

Ans: more than 17 ppm.

Q7.	The pollutants released by jet aeroplanes in the atmosphere as fluorocarbons are called
	A.Photochemical oxidants
	B.Photochemical reductants
	C.Aerosols
	D.Physical pollutants

Ans: Aerosols

Q8.	The birds lay eggs with shells that are much thinner than normal is an example of _________
	A.Bioaccumulation
	B.Mutation
	C.DNA sequence
	D.Mal nutrients

Ans: Bioaccumulation

Q9.	Which among the following is bio – degradable pollutant?
	A.Lead compounds
	B.Mercuric salts
	C.Pesticides
	D.Domestic wastes.

Ans: Domestic wastes.

Q10.	The substance having the largest concentration in acid rain?
	A.H₂CO₃
	B.HNO₃
	C.HCl
	D.H₂SO₄

Ans: H₂SO₄

Q11.	Which of the following is most abundant hydrocarbon pollutant?
	A.Butane
	B.Ethane
	C.Methane
	D.Propane

Ans: Methane

Q12.	In Antarctica, ozone depletion is due to the formation of the following compounds
	A.Acroline
	B.Peroxy acetyl nitrate
	C.SO₂ and SO₃
	D.Chlorine nitrate

Ans: Chlorine nitrate

Q13.	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

Ans: CH₂ = CH₂

Q14.	Lung diseases are four times more in urban areas than rural areas. This is due to presence of which of the following in atmosphere?
	A.CO₂
	B.SO₂
	C.N₂
	D.O₂.

Ans: SO₂

Q15.	In which of the following regions hydrogen and helium are found
	A.Stratosphere
	B.Mesosphere
	C.Exosphere
	D.Troposphere

Ans: Exosphere

Q16.	Which of the following organisms found in human waste that cause water pollution?
	A.Coliform bacteria
	B.Coliform bacteria
	C.Protozoa
	D.Parasitic worms

Ans: Coliform bacteria

Q17.	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

Ans: Thermal power stations

Q18.	Which among the following does not cause water pollution?
	A.Automoblie exhaust
	B.Plant nutrients
	C.Oxygen demanding wastes
	D.Disease causing agents .

Ans: Automoblie exhaust

Q19.	The non-viable particulate among the following is
	A.Dust
	B.Bacteria
	C.Moulds
	D.Fungi

Ans: Dust

Q20.	Why thermal pollution causing the release of hot water by power plants is dangerous?
	A.They increase the solubility of oxygen
	B.They decrease the solubility of oxygen
	C.They dont dissolve oxygen
	D.They dissolve nitrogen