Chemistry The purest form of Iron is : Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chernobyl disaster is the result of pollution by Carbon dioxide Acid rain Radioactive waste Oil spill Carbon dioxide Acid rain Radioactive waste Oil spill ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Calcium chloride Sodium chloride Sodium nitrate Ammonium chloride Calcium chloride Sodium chloride Sodium nitrate Ammonium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry A colloidal system in which a liquid is dispersed in a liquid is called Precipitate Gel Emulsion Sol Precipitate Gel Emulsion Sol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Solar energy devices Transistors All of these Semiconductors Solar energy devices Transistors All of these Semiconductors ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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