Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Adsorption Oxidation Reduction Bleaching Adsorption Oxidation Reduction Bleaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Sodium bicarbonate Magnesium carbonate Magnesium hydroxide Calcium hydroxide Sodium bicarbonate Magnesium carbonate Magnesium hydroxide Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heaviest naturally occurring element is: Thorium Polonium Uranium Mercury Thorium Polonium Uranium Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Magnesium sulphate Calcium carbonate Potassium chloride Sodium chloride Magnesium sulphate Calcium carbonate Potassium chloride Sodium chloride 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 Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Oxides of nitrogen Lead Carbon monoxide Polyclinic hydrocarbons Oxides of nitrogen Lead Carbon monoxide Polyclinic hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
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