Chemistry The method that cannot be used for removing permanent hardness of water is adding caustic soda distillation adding sodium carbonate boiling adding caustic soda distillation adding sodium carbonate boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Carbon dioxide Chlorofluorocarbons Nitrous oxide Sulphur dioxide Carbon dioxide Chlorofluorocarbons Nitrous oxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest commercial form of iron ? Wrought iron Pig iron Stainless steel Steel Wrought iron Pig iron Stainless steel Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of naturally occurring elements 62 110 92 98 62 110 92 98 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Charcoal Carbon black Activated Coconut Charcoal Activated Charcoal Charcoal Carbon black Activated Coconut Charcoal Activated Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Noble gases Heavy metals Light metals Halogens Noble gases Heavy metals Light metals ANSWER DOWNLOAD EXAMIANS APP
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