Chemistry Which one of the following metals does not react with water to produce Hydrogen ? Lithium Cadmium Sodium Potassium Lithium Cadmium Sodium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal extracted from Bauxite is : Copper Aluminum Silver Manganese Copper Aluminum Silver Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is biodegradable ? Aluminium Paper D.T. Plastic Aluminium Paper D.T. Plastic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rusting of iron takes place due to Exfoliation Oxidation Corrosion Carbonation Exfoliation Oxidation Corrosion Carbonation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : Oxidation Ozonolysis Hydrolysis Hydrogenation Oxidation Ozonolysis Hydrolysis Hydrogenation ANSWER DOWNLOAD EXAMIANS APP
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