Chemistry The scientist who experimentally proved the existance of positron is Anderson Bethe Fermi Bohr Anderson Bethe Fermi Bohr ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Smoke Sulphur dioxide Carbon monoxide Carbon dioxide Smoke Sulphur dioxide Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Zinc Silver Aluminium Copper Zinc Silver Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Will increase four-fold Will be doubled Remains unchanged Will be reduced to half Will increase four-fold Will be doubled Remains unchanged Will be reduced to half ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant rare gas in the atmosphere is He Ne Xe Ar He Ne Xe Ar ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of plastic polymer from which combs, toys, bowls etc., can be made, is Polyurethane Metallic polysulphides Polystyrene Teflon Polyurethane Metallic polysulphides Polystyrene Teflon ANSWER DOWNLOAD EXAMIANS APP
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