1 Mark => CHAPTER 14 ENVIRONMENTAL CHEMISTRY Questions Answers

ONE MARK QUESTION

Q.1. What is the name of the compound formed when CO combines with blood?
Ans: Carboxyhaemoglobin.

Q.2. Which zone is known as ozonosphere?
Ans: Stratosphere.

Q.3. Name the main gases responsible for damage in ozone layer?
Ans: NO and CFCs(freons).

Q.4. What is the nature of classical smog?
Ans: Reducing

Q.5. Name the acids which are responsible for acid rain?
Ans: H₂SO₄, HNO₃ and HCl.





Q.6. List out the gasses which are considered as major source of air pollution?
Ans: Carbon monoxide(CO),sulphur dioxide(SO₂)and oxides of nitrogen(NO₂).

Q.7. What is PAN stands for?
Ans: It is peroxyacetyl nitrate.

Q.8. Give the examples of insecticides?
Ans: DDT,BHC.

Q.9. Which gas is mainly responsible for BHOPAL gas tragedy?
Ans: Methyl isocyanate.

Q.10.What should be the tolerable limit of F^- ions in drinking water?
Ans: 1ppm or 1mg dm^-3.