We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 11 Chemistry book Chapter 14 Environmental Chemistry with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 11 Chemistry Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Environmental Chemistry. Each Questions has four options followed by the right answer. Download the Chemistry Quiz Questions with Answers for Class 11 free Pdf and prepare to exam and help students understand the concept very well.
MCQ Questions for Class 11 Chemistry with Answers
Q1. Which is most harmful for life on globe?
(i) Deforestation
(ii) Soil Erosion
(iii) Increasing Desert
(iv) Nuclear Fallout
(iv) Nuclear Fallout
Q2. Which of the following is the coldest region?
(i) Troposphere
(ii) Mesosphere
(iii) Stratosphere
(iv) Thermosphere.
(ii) Mesosphere
Q3. Fluorosis, the bone disease, is caused by the presence of
(i) Pesticides in water
(ii) Fluorides in water
(iii) Carbon monoxide in air
(iv) Sulphur dioxide in air.
(ii) Fluorides in water
Q4. Green chemistry means such reasons which
(i) produce colour during reactions
(ii) reduce the use and production of hazardous chemicals
(iii) are related to the depletion of ozone layer
(iv) study the reactions in plants
(ii) reduce the use and production of hazardous chemicals
Q5. Excess nitrate in drinking water can cause
(i) methemoglobinemia
(ii) kidney damage
(iii) liver damage
(iv) laxative effect
(i) methemoglobinemia
Q6. Ozone layer is present in
(i) Troposphere
(ii) Stratosphere
(iii) Mesophere
(iv) Exosphere
(ii) Stratosphere
Q7. Which of the following is responsible for depletion of ozone layer in the upper strata of the atmosphere?
(i) Polyhalogens
(ii) Ferrocene
(iii) Fullerencs
(iv) Freons.
(iv) Freons.
Q8. Among the following, the one that is not a green house gas is:
(i) sulphur dioxide
(ii) nitrous oxide
(iii) methane
(iv) ozone
(i) sulphur dioxide
Q9. Water sample is reported to be highly polluted if BOD (Biological Oxygen Demand) value of sample becomes
(i) more than 17 ppm.
(ii) equal to 10 ppm.
(iii) equal to 5 ppm.
(iv) less than 5 ppm.
(i) more than 17 ppm
Q10. Photochemical smog is formed in
(i) Summer during morning time
(ii) Summer during day time
(iii) Winter during morning time
(iv) Winter during day time.
(ii) Summer during day time
Q11. Which of the following acts as a sink for CO?
(i) Plants
(ii) Haemoglobin
(iii) Microorganisms present in the soil
(iv) Oceans
(iii) Microorganisms present in the soil
Q12. Which country has the greatest contribution for the hole formation in ozone layer?
(i) Russia
(ii) Japan
(iii) USA
(iv) Germany
(iii) USA
Q13. The birds lay eggs with shells that are much thinner than normal is an example of _
(i) Bioaccumulation
(ii) Mutation
(iii) DNA sequence
(iv) Mal nutrients
(i) Bioaccumulation
Q14. The most abundant hydrocarbon pollutant is
(i) Methane
(ii) Ethane
(iii) Propane
(iv) Butane
(i) Methane
Q15. Domestic waste mostly constitutes
(i) Non-biodegradable pollution
(ii) Biodegradable pollution
(iii) Effluents
(iv) Air pollution
(ii) Biodegradable pollution
Q16. The major source of BOD in the river Ganga is
(i) Leaf litter
(ii) Fishes
(iii) Human waste
(iv) Aquatic plants
(iii) Human waste
Q17. Which of the following is most abundant hydrocarbon pollutant?
(i) Butane
(ii) Ethane
(iii) Methane
(iv) Propane
(iii) Methane
Q18. The size of the particulates of H2SO4 fog lies in the range
(i) 5-100 nm
(ii) 100-500 nm
(iii) 500-1000 nm
(iv) 1000-10000 nm
(iii) 500-1000 nm
Q19. One of the following is the chief source of water and soil pollution
(i) Agro industry
(ii) Mining
(iii) Thermal power stations
(iv) All of these
(iii) Thermal power stations
Q20. Pollution can be controlled by
(i) Sewage treatment
(ii) Checking atomic blasts
(iii) Manufacturing electrically operated vehicles
(iv) All the above
(iv) All the above
Q21. In which of the following regions hydrogen and helium are found
(i) Stratosphere
(ii) Mesosphere
(iii) Exosphere
(iv) Troposphere
(iii) Exosphere
Q22. The region closest to earth’s surface is
(i) Stratosphere
(ii) Mesosphere
(iii) Troposphere
(iv) Thermosphere.
(iii) Troposphere
Q23. Which of the following is responsible for depletion of ozone layer in the upper strata of the atmosphere?
(i) Polyhalogens
(ii) Ferrocene
(iii) Fullerencs
(iv) Freons.
(iv) Freons.
Q24. The compound essential for the process of photosynthesis has this element
(i) Ca
(ii) Ba
(iii) Fe
(iv) Mg
(iv) Mg
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MCQ Questions for Class 11 Chemistry Chapter wise with Answers
- Lesson 1. Some Basic Concepts of Chemistry Class 11 MCQ Questions
- Lesson 2. Structure of Atom Class 11 MCQ Questions
- Lesson 3. Classification of Elements and Periodicity in Properties Class 11 MCQ Questions
- Lesson 4. Chemical Bonding and Molecular Structure Class 11 MCQ Questions
- Lesson 5. States of Matter Class 11 MCQ Questions
- Lesson 6. Thermodynamics Class 11 MCQ Questions
- Lesson 7. Equilibrium Class 11 MCQ Questions
- Lesson 8. Redox Reactions Class 11 MCQ Questions
- Lesson 9. Hydrogen Class 11 MCQ Questions
- Lesson 10. The s-Block Elements Class 11 MCQ Questions
- Lesson 11. The p-Block Elements Class 11 MCQ Questions
- Lesson 12. Organic Chemistry: Some Basic Principles and Techniques Class 11 MCQ Questions
- Lesson 13. Hydrocarbons Class 11 MCQ Questions
- Lesson 14. Environmental Chemistry Class 11 MCQ Questions