In a day call (battery) which of the following is used as Electrolytes?

Which one of the following elements is essential for the construction of nuclear reactors?

Which one of the following has the highest fuel value?

Which one of the following is used as an explosive?

Which one of the following was used as a chemical weapon in the First World War?

Which one of the following is used as an anti-freeze for the automobile engines?

Consider the following
(a) Oxides of hydrogen
(b) Oxides of nitrogen
(c) Oxides of sulphur
Which of the above will cause acid rain?

The water pollution in river is measured by the dissolved amount of

Match List I with List II and select the correct answer using the codes given below the lists.
List I                                                  List II
A. Potassium bromide            1. Fertiliser
B. Potassium nitrate               2. Photography
C. Potassium sulphate            3. Bakery
D. Monopotassium tartarate4. Gunpowder

Match List I with List II and select the correct answer using the codes given below the lists
List I                              List II
A. Blue vitriol    1. Sodium bicarbonate
B. Epsom salt    2. Sodium hydroxide
C. Baking soda  3. Magnesium sulphate
D. Caustic soda 4. Copper sulphate