CBSE Class 11 Chemistry VBQs Environmental Chemistry

CBSE Class 11 Chemistry VBQs Environmental Chemistry read and download in pdf. Value Based Questions come in exams for Chemistry in Class 11 and are easy to learn and helpful in scoring good marks. You can refer to more chapter wise VBQs for Class 11 Chemistry and also get latest topic wise very useful study material as per latest NCERT book for Class 11 Chemistry and all other subjects for free on Studiestoday designed as per latest Class 11 CBSE, NCERT and KVS syllabus and examination pattern

VBQ for Class 11 Chemistry Chapter 14 Environmental Chemistry

Class 11 Chemistry students should refer to the following value based questions with answers for Chapter 14 Environmental Chemistry in Class 11. These VBQ questions with answers for Class 11 Chemistry will come in exams and help you to score good marks

Chapter 14 Environmental Chemistry VBQ Questions Class 11 Chemistry with Answers

Question. Which of the following is not correct about carbon monoxide?
(a) It forms carboxyhaemoglobin.
(b) It reduces oxygen carrying ability of blood.
(c) The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin.
(d) It is produced due to incomplete combustion.
Answer. C

Question. Among the following, the one that is not a greenhouse gas is
(a) sulphur dioxide
(b) nitrous oxide
(c) methane
(d) ozone.
Answer. A

Question. Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
(a) N2O5
(b) NO2
(c) N2O
(d) NO 
Answer. A

Question. Which of the following is a sink for CO?
(a) Microorganisms present in the soil
(b) Oceans
(c) Plants
(d) Haemoglobin 
Answer. A

Question. Which one of the following is not a common component of photochemical smog?
(a) Ozone
(b) Acrolein
(c) Peroxyacetyl nitrate
(d) Chlorofluorocarbons 
Answer. D

Question. Which one of the following statements regarding photochemical smog is not correct?
(a) Carbon monoxide does not play any role in photochemical smog formation.
(b) Photochemical smog is an oxidising agent in character.
(c) Photochemical smog is formed through photochemical reaction involving solar energy.
(d) Photochemical smog does not cause irritation in eyes and throat. 
Answer. D

Question. Which one of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
(a) Polyhalogens
(b) Ferrocene
(c) Fullerenes
(d) Freons 
Answer. D

Question. About 20 km above the earth, there is an ozone layer. Which one of the following statements about ozone and ozone layer is true?
(a) It is beneficial to us as it stops U.V. radiation.
(b) Conversion of O3 to O2 is an endothermic reaction.
(c) Ozone is a triatomic linear molecule.
(d) It is harmful as it stops useful radiation. 
Answer. A

Question. Which one of the following statements is not true?
(a) Clean water would have a BOD value of 5 ppm.
(b) Fluoride deficiency in drinking water is harmful. Soluble fluoride is often used to bring its concentration upto 1 ppm.
(c) When the pH of rain water is higher than 6.5, it is called acid rain.
(d) Dissolved Oxygen (DO) in cold water can reach a concentration upto 10 ppm.
Answer. C

Question. Which one of the following statement is not true?
(a) pH of drinking water should be between5.5 – 9.5.
(b) Concentration of DO below 6 ppm is good for the growth of fish.
(c) Clean water would have a BOD value of less than 5 ppm.
Answer. B

Question. Green chemistry means such reactions which
(a) are related to the depletion of ozone layer
(b) study the reactions in plants
(c) produce colour during reactions
(d) reduce the use and production of hazardous chemicals.
Answer. D


Question. Environmental pollution is causing a serious threat on the earth. Due to combustion of fossil fuels, a number of  poisonous and harmful gases enter into the atmosphere. Every country has made strict laws for industries and individual citizens to keep pollution under control.

Now answer the following questions:

Question. Why is it advised not to sleep with burning coke angithi in a closed room on winter nights?
Answer: 
On burning coke, a lot of carbon monoxide is produced which causes anoxia.

Question. How does the combustion of motor fuels cause pollution of the atmosphere?
Answer: 
On burning motor-fuels, toxic oxides of nitrogen is formed which affect respiratory system.

Question. Name one natural source and one human activity by which SO2 enters into atmosphere?
Answer: 
Due to volcanic eruption and through combustion of sulphur containing fuels.

Question. An ozone-layer is present at a height of 25-30 km from earth-surface which protects us from U.V. radiation. A hole in the ozone-layer is created due to human activity.

Now answer the following questions:

Question. Which activity has been causing ozone-hole?
Answer: 
Use of CFC’s

Question. What is the most serious effect of ozone-hole?
Answer: 
The most serious effect is that U.V. radiation reaches the earth-surface causing skin cancer.

Question. What has been done to protect ozone layer?
Answer: 
Use of CFC’s has been banned.

Question.  How does excess CO2 gas pollute the atmosphere?
Answer:
 Excess CO2 creates ‘greenhouse effect’ which increases the earth’s temperature.

Chapter 01 Some Basic Concepts of Chemistry
CBSE Class 11 Chemistry VBQs Basic Concepts Of Chemistry
Chapter 03 Classification of Elements and Periodicity in Properties
CBSE Class 11 Chemistry VBQs Classification Of Elements And Periodicity
Chapter 04 Chemical Bonding and Molecular Structure
CBSE Class 11 Chemistry VBQs Chemical Bonding And Molecular Structure
Chapter 10 The s Block Elements
CBSE Class 11 Chemistry VBQs S Block Elements
Chapter 11 The p Block Elements
CBSE Class 11 Chemistry VBQs P Block Elements
Chapter 12 Organic Chemistry Some Basic Principles and Techniques
CBSE Class 11 Chemistry VBQs Some Basic Concept In Organic Chemistry
Chapter 14 Environmental Chemistry
CBSE Class 11 Chemistry VBQs Environmental Chemistry

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CBSE Class 11 Chemistry Chapter 14 Environmental Chemistry VBQs

We hope students liked the above VBQs for Chapter 14 Environmental Chemistry designed as per the latest syllabus for Class 11 Chemistry released by CBSE. Students of Class 11 should download the Value Based Questions and Answers in Pdf format and practice the questions and solutions given in above Class 11 Chemistry VBQs Questions on daily basis. All latest VBQs with answers have been developed for Chemistry by referring to the most important and regularly asked topics which the students should learn and practice to get better score in school tests and examinations. Studiestoday is the best portal for Class 11 students to get all latest study material free of cost.

VBQs for Chemistry CBSE Class 11 Chapter 14 Environmental Chemistry

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Chapter 14 Environmental Chemistry VBQs Chemistry CBSE Class 11

All VBQs given above for Class 11 Chemistry have been made as per the latest syllabus and books issued for the current academic year. The students of Class 11 can refer to the answers which have been also provided by our teachers for all VBQs of Chemistry so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided lot of MCQ questions for Class 11 Chemistry so that you can solve questions relating to all topics given in each chapter. All study material for Class 11 Chemistry students have been given on studiestoday.

Chapter 14 Environmental Chemistry CBSE Class 11 VBQs Chemistry

Regular VBQs practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Chapter 14 Environmental Chemistry concepts. VBQs play an important role in developing understanding of Chapter 14 Environmental Chemistry in CBSE Class 11. Students can download and save or print all the VBQs, printable assignments, practice sheets of the above chapter in Class 11 Chemistry in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 11 Chemistry MCQ Test for the same chapter

CBSE VBQs Chemistry Class 11 Chapter 14 Environmental Chemistry

CBSE Class 11 Chemistry best textbooks have been used for writing the problems given in the above VBQs. If you have tests coming up then you should revise all concepts relating to Chapter 14 Environmental Chemistry and then take out print of the above VBQs and attempt all problems. We have also provided a lot of other VBQs for Class 11 Chemistry which you can use to further make yourself better in Chemistry

Where can I download latest CBSE VBQs for Class 11 Chemistry Chapter 14 Environmental Chemistry

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What are VBQs for Class 11 Chemistry Chapter 14 Environmental Chemistry

Value Based Questions (VBQs) for Class 11 Chemistry Chapter 14 Environmental Chemistry help to test the ability of students to apply learnings to various situations in life.