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

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MCQ Questions for Class 11 Chemistry with Answers


Q1. The compound essential for the process of photosynthesis has this element

(A) Ca
(B) Ba
(C) Fe
(D) Mg

(D) Mg


Q2. Which is most harmful for life on globe?

(A) Deforestation
(B) Soil Erosion
(C) Increasing Desert
(D) Nuclear Fallout

(D) Nuclear Fallout


Q3. 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.

(D) Freons.


Q4. Which of the following is the coldest region?

(A) Troposphere
(B) Mesosphere
(C) Stratosphere
(D) Thermosphere.

(B) Mesosphere


Q5. The region closest to earth’s surface is

(A) Stratosphere
(B) Mesosphere
(C) Troposphere
(D) Thermosphere.

(C) Troposphere


Q6. 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.

(B) Fluorides in water


Q7. In which of the following regions hydrogen and helium are found

(A) Stratosphere
(B) Mesosphere
(C) Exosphere
(D) Troposphere

(C) Exosphere


Q8. Green chemistry means such reasons which

(A) produce colour during reactions
(B) reduce the use and production of hazardous chemicals
(C) are related to the depletion of ozone layer
(D) study the reactions in plants

(B) reduce the use and production of hazardous chemicals


Q9. Pollution can be controlled by

(A) Sewage treatment
(B) Checking atomic blasts
(C) Manufacturing electrically operated vehicles
(D) All the above

(D) All the above


Q10. Excess nitrate in drinking water can cause

(A) methemoglobinemia
(B) kidney damage
(C) liver damage
(D) laxative effect

(A) methemoglobinemia


Q11. 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

(C) Thermal power stations


Q12. Ozone layer is present in

(A) Troposphere
(B) Stratosphere
(C) Mesophere
(D) Exosphere

(B) Stratosphere


Q13. The size of the particulates of H2SO4 fog lies in the range

(A) 5-100 nm
(B) 100-500 nm
(C) 500-1000 nm
(D) 1000-10000 nm

(C) 500-1000 nm


Q14. 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.

(D) Freons.


Q15. 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.

(A) more than 17 ppm


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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

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