Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Light metals Noble gases Heavy metals Halogens Light metals Noble gases Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as non-stick coating for cooking utensils? Styrofoam Perspex Polystyrene Teflon Styrofoam Perspex Polystyrene Teflon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water can be purified by the process of Fractional distillation Filtration Distillation Evaporation Fractional distillation Filtration Distillation Evaporation ANSWER DOWNLOAD EXAMIANS APP
Chemistry By-product obtained by soap industry is Glycerol Caustic soda Caustic potash Naphthalene Glycerol Caustic soda Caustic potash Naphthalene ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Sodium oxide and argon Sodium vapour and neon Mercury oxide and neon Mercury vapour and argon Sodium oxide and argon Sodium vapour and neon Mercury oxide and neon Mercury vapour and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the atmosphere is mainly caused by Hydrogen sulphide Nitrogen dioxide Sulphur dioxide Chlorofluorocarbon Hydrogen sulphide Nitrogen dioxide Sulphur dioxide Chlorofluorocarbon ANSWER DOWNLOAD EXAMIANS APP
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