Chemistry Helium gas is filled in ballons because It is lighter than air Its atomic number is 2 It is a noble gas It is one of the constitutents of water It is lighter than air Its atomic number is 2 It is a noble gas It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher atomic masses Higher atomic numbers Higher densities Higher atomic radii Higher atomic masses Higher atomic numbers Higher densities Higher atomic radii ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are Sodium salts of sulphonic acids None of these Sodium salt of benzoic acid Sodium salts of fatty acids Sodium salts of sulphonic acids None of these Sodium salt of benzoic acid Sodium salts of fatty acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Atomic Weight Atomic number Mass number Neutron number Atomic Weight Atomic number Mass number Neutron number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? Photochemical smog SO2 NO2 Dust particles Photochemical smog SO2 NO2 Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is used to manufacture which of the following ? Nylon Artificial silk Terylene Rubber Nylon Artificial silk Terylene Rubber ANSWER DOWNLOAD EXAMIANS APP
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