sulphuric acid
carbon monoxide
ozone
nitric acid
The acid stored in batteries is:
The acid used in lead storage cells is
The active substance present in dettol is
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
