Chemistry Ozone depletion in the atmosphere is mainly caused by Chlorofluorocarbon Hydrogen sulphide Nitrogen dioxide Sulphur dioxide Chlorofluorocarbon Hydrogen sulphide Nitrogen dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of discovery of elements periodic table of contents atomic structure metallurgy discovery of elements periodic table of contents atomic structure metallurgy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most dense liquid from the below Gasolin None of these Choloform Water Gasolin None of these Choloform Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: Same or opposite spin Same spin Opposite spin No spin Same or opposite spin Same spin Opposite spin No spin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Brass Silver Copper Bronze Brass Silver Copper Bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gunpowder consits of a mixture of Sand and TNT Sulphur, sand and charcoal TNT and charcoal Nitre, sulphur and charcoal Sand and TNT Sulphur, sand and charcoal TNT and charcoal Nitre, sulphur and charcoal ANSWER DOWNLOAD EXAMIANS APP
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