Chemistry Which one of the following elements is used in the manufacture of safety matches? Graphite Sodium Silicon Phosphorus Graphite Sodium Silicon Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Hydrogen Nitrogen Helium Methane Hydrogen Nitrogen Helium Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon footprint can be reduced by All of these Recycling waste materials Using energy efficient appliances Commuting by public transport All of these Recycling waste materials Using energy efficient appliances Commuting by public transport ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conversion of chemical energy into electrical energy occurs in Atomic bombs Dynamo Electric heaters A battery Atomic bombs Dynamo Electric heaters A battery ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard water and soft water can be distinguished by using Liquid soap Detergent Dilute acid Ordinary soap Liquid soap Detergent Dilute acid Ordinary soap ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and tin Lead and antimony Lead and tin Copper and zinc Copper and tin Lead and antimony Lead and tin Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
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