Chemistry J.J. Thomson’s proposed model of atom is generally called ________ model. Plum and pudding Cream and cake Plum and cake Cream and pudding Plum and pudding Cream and cake Plum and cake Cream and pudding ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Oxygen Hydrogen Nitrogen Helium Oxygen Hydrogen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultra purification of a metal is done by : Slugging Smelting Leaching Zone melting Slugging Smelting Leaching Zone melting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Sulphur dioxide Carbon suboxide Carbon dioxide Carbon monoxide Sulphur dioxide Carbon suboxide Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 18 6 12 Zero 18 6 12 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O 2 layer O3 layer CO2 layer SO2 layer O 2 layer O3 layer CO2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
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