Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 150 km 200 km 100 km 300 km 150 km 200 km 100 km 300 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The charcoal used to decolourise brown sugar solution is Wood charcoal Sugar charcoal Animal charcoal Coconut charcoal Wood charcoal Sugar charcoal Animal charcoal Coconut charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Newton Dalton Pascal Avogadro Newton Dalton Pascal Avogadro ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Fermi Anderson Bethe Bohr Fermi Anderson Bethe Bohr ANSWER DOWNLOAD EXAMIANS APP
Chemistry White coal is Diamond Uranium Hydro-electricity None of these Diamond Uranium Hydro-electricity None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of Unburnt petrol SO2 CO CO2 Unburnt petrol SO2 CO CO2 ANSWER DOWNLOAD EXAMIANS APP
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