DDT
chloroxylenol
hydrogen peroxide
acetone
The addition of gypsum to portland cement helps in:
The advantage of detergents over soaps is
The alkali metals have
The alkoloid naturally found in coffee, cocoa cola nut is
The alum used for purifying water is
The amino acid are the end product of digestion of
The amount of oxygen in the atmosphere remains relatively constant as it is given off by
The apparatus used to test acidity of aqueous solution is
The atmosphere exerts enormous pressure on us. But we do not feel it because
The atomic weight of uranium is
