1.  Element with Highest Ionization energy is-

Answer & Explanation
helium

2.  Burning Pyrites ore gives out

Answer & Explanation
Sulphur dioxide gas

3.  Sour taste of coca cola is due to -

Answer & Explanation
Phosphoric acid

4.  White Phosphorous is place under the

Answer & Explanation
Cold water

5.  The word 'Brown air' is used for -

Answer & Explanation
Photochemical Smoke

6.  Commonly sodium is kept under the- Kerosene oil

Answer & Explanation
 

7.  Chloroform can be used as - Anaesthtic

Answer & Explanation
 

8.  What happen when a drop of Glycerol is added to KMno4 spread on paper?

Answer & Explanation
The paper ignites

9.  Which affected the 'Taj Mahal'?

Answer & Explanation
Which affected the 'Taj Mahal'?

10.  Hydrogen sulphide is a

Answer & Explanation
Colourless   gas                    with rotten egg smell

11.  The process involved in the making of soap is-

Answer & Explanation
Sponification

12.  By Product obtained by soap industry is -Glycero

Answer & Explanation
 

13.  What is Peroxyl?

Answer & Explanation
Macro Pollutant

14.  The main cause of air pollution in big cities is

Answer & Explanation
Suspended particle

15.  Which gas is filled in balloons?

Answer & Explanation
Helium