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 are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically Water and petrol are miscible with each other The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol react chemically Water and petrol are miscible with each other ANSWER DOWNLOAD EXAMIANS APP
Chemistry Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : Hydrolysis Hydrogenation Oxidation Ozonolysis Hydrolysis Hydrogenation Oxidation Ozonolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stalactites and Stalagmites form due to the precipitation of : MgCl2 CaCl2 CaCO3 MgCO3 MgCl2 CaCl2 CaCO3 MgCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Surface tension Viscosity Elasticity Floatation Surface tension Viscosity Elasticity Floatation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to galvanise iron to protect it from rusting is Zinc Antimony Lead Chromium Zinc Antimony Lead Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Rain water Ground water Tap water Distilled water Rain water Ground water Tap water Distilled water ANSWER DOWNLOAD EXAMIANS APP
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