Chemistry Which of the following metals has least melting point ? Mercury Gold Silver Copper Mercury Gold Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Corrosion Reduction Sublimation Galvanisation Corrosion Reduction Sublimation Galvanisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because The flame is too hot for water to cool it down Water and petrol react chemically Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol react chemically Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stalactites and Stalagmites form due to the precipitation of : CaCO3 CaCl2 MgCO3 MgCl2 CaCO3 CaCl2 MgCO3 MgCl2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most suitable vessel for storing concentrated sulphuric acid is Copper vessel Glass vessel Aluminium vessel Earthen vessel Copper vessel Glass vessel Aluminium vessel Earthen vessel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound to which H2 does not add is Tetra – a –naphthylethylene Biphenyl ethylene Tetra –9 – phenanthrylethylene Tetraphenyl ethylene Tetra – a –naphthylethylene Biphenyl ethylene Tetra –9 – phenanthrylethylene Tetraphenyl ethylene ANSWER DOWNLOAD EXAMIANS APP
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