Chemistry Helium gas is filled in ballons because It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Piped Natural Gas (PNG) is used for Welding Mining Anaesthesia Cooking Welding Mining Anaesthesia Cooking ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process which does not evolve CO2 in air is Organic delay Breathing Photosynthesis Burning Organic delay Breathing Photosynthesis Burning ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is ethylene ethyl alcohol None of these vinyl chloride ethylene ethyl alcohol None of these vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Sulphur dioxide Carbon monoxide Nitrous oxide Carbon dioxide Sulphur dioxide Carbon monoxide Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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