Chemistry Permanent – hardness of water may be removed by addition of Alum Potassium Permangante Sodium carbonate Lime Alum Potassium Permangante Sodium carbonate Lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the naturally occuring heaviest element Protactinium Uranium Mercury Thorium Protactinium Uranium Mercury Thorium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a sublime substance? Sugar Table salt Potassium Iodide Iodine Sugar Table salt Potassium Iodide Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Solar energy devices Semiconductors All of these Transistors Solar energy devices Semiconductors All of these Transistors ANSWER DOWNLOAD EXAMIANS APP
Chemistry In its reaction with silver nitrate, C2H2 shows Basic property Oxidising property Reducing property Acidic property Basic property Oxidising property Reducing property Acidic property ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is lustrous because It is pure It is colourless Its refractive index is high It is hard It is pure It is colourless Its refractive index is high It is hard ANSWER DOWNLOAD EXAMIANS APP
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