Chemistry The first metal used by a man was Brass Copper Silver Bronze Brass Copper Silver Bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Carbon Oxygen Nitrogen Hydrogen Carbon Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Copper and tin Lead and tin Lead and antimony Copper and zinc Copper and tin Lead and tin Lead and antimony Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Colloids can be purified by Condensation Condensation Condensation Dialysis Condensation Condensation Condensation Dialysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most malleable metal is gold platinum silver iron gold platinum silver iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Polythene is polymer of Aniline Acetylene Propylene Ethylene Aniline Acetylene Propylene Ethylene ANSWER DOWNLOAD EXAMIANS APP
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