chemistry

ENVIRONMENTAL CHEMISTRY

ONE MARK QUESTION

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

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

3.     Which main gas esis responsible for damage in ozone layer? Ans:-NO and CFCs(freons).

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

5.     Name the acids which are responsible for acid rain? Ans:-H₂SO₄,HNO₃and HCl.

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).

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

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

9.     Which gas is mainly responsible for BHOPAL gas tragedy?

Ans:-Methyl isocyanate.

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