Chemistry Sea water is saltier than rain water because Sea beds have salt producing mines Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea The air around the sea is saltish Sea beds have salt producing mines Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea The air around the sea is saltish ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chernobyl disaster is the result of pollution by Radioactive waste Oil spill Carbon dioxide Acid rain Radioactive waste Oil spill Carbon dioxide Acid rain ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Galena Siderite Pyrolusite Magnetite Galena Siderite Pyrolusite Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Chromium Copper Lead Cadmium Chromium Copper Lead Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids Sodium salts of fatty acids None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids Sodium salts of fatty acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? Half a million One million Ten million Two million Half a million One million Ten million Two million ANSWER DOWNLOAD EXAMIANS APP