Chemistry The element with highest first ionisation energy is Hydrogen Lithium Helium Sodium Hydrogen Lithium Helium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Butane Propane Methane Ethane Butane Propane Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of aluminium is magnetite haematite bauxite monazite magnetite haematite bauxite monazite ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electric iron has a heating element made of : Copper Zinc Tungsten Nichrome Copper Zinc Tungsten Nichrome ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because 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 The flame is too hot for water to cool it down Water and petrol react chemically ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compounds formed when hydrogen combines with p-block elements are called Polynuclear hydrides Metallic hydrides Molecular hydrides Ionic hydrides Polynuclear hydrides Metallic hydrides Molecular hydrides Ionic hydrides ANSWER DOWNLOAD EXAMIANS APP
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