Chemistry Helium is added to the oxygen supply of deep sea divers because it is Readily miscible with oxygen Less soluble in blood than nitrogen at high pressure Lighter than nitrogen Less poisonous than nitrogen Readily miscible with oxygen Less soluble in blood than nitrogen at high pressure Lighter than nitrogen Less poisonous than nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Reduction Oxidation Adsorption Bleaching Reduction Oxidation Adsorption Bleaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry Williamson's synthesis is widely used in the laboratory preparation of Esters Aldehydes Alcohols Ethers Esters Aldehydes Alcohols Ethers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Mercury Lead Zinc Copper Mercury Lead Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galena is a mineral of Lead Iron Calcium Gold Lead Iron Calcium Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Colloids can be purified by Condensation Condensation Condensation Dialysis Condensation Condensation Condensation Dialysis ANSWER DOWNLOAD EXAMIANS APP
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