91 .The sweetest of all sugars-
92 .Which one among the following substances is NOT a 'green house' gas?
93 .Muddy water is treated with alum in purification process, it is termed as.
94 .The photoelectric effect is described as the ejection of electrons from the surface of metal when-
95 .In the manufacture of safety matches, we use-
96 .Chemical name of Gammaxane is:
97 .The word 'insolation' means
98 .Which electro magnetic radiation is emitted by radioactive substance-
99 .Hydrogen bomb is based on the principle of -
100 .In the study of pollution, SPM refers to
101 .Deficiency of which one of the following cause xerophthalmia-
102 .Main pollutan present in automobile exhaust is-
103 .The increasing amount of carbon dioxide in the air is slowly raising the temperature of atmosphere, because it absobs-
104 .Aqua Regia contains
105 .What was the fissionable material used in the bombs dropped at Nagasaki (Japan) in the years 1945?