Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is '6.023 × 10–23 6.023 × 1023 '6.023 × 10–20 6.023 × 1020 '6.023 × 10–23 6.023 × 1023 '6.023 × 10–20 6.023 × 1020 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon monoxide Smoke Sulphur dioxide Carbon dioxide Carbon monoxide Smoke Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 2 : 16 : 1 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 2 : 16 : 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Yellow Cake' an item of smuggling across border is Unreformed gold A crude from of cocaine A crude from of heroin Uranium oxide Unreformed gold A crude from of cocaine A crude from of heroin Uranium oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Limonite Siderite Haematite Magnetite Limonite Siderite Haematite Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rock salt is a mineral containing Sodium Magnesium Potassium Iron Sodium Magnesium Potassium Iron ANSWER DOWNLOAD EXAMIANS APP
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