Chemistry Brass is made of Copper and zinc Tin and lead Copper and tin Copper, tin and zinc Copper and zinc Tin and lead Copper and tin Copper, tin and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Bronze Brass Silver Copper Bronze Brass Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a derivative of barbituric acid Veronal Nembutal Equanil Amytal Veronal Nembutal Equanil Amytal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals can displace copper from copper sulphate solution ? Gold Mercury Platinum Iron Gold Mercury Platinum Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium is added to the oxygen supply of deep sea divers because it is Less poisonous than nitrogen 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When Hydrogen starts burning in air, it produces ? Methane Carbonic Acid Water Ammonia Methane Carbonic Acid Water Ammonia ANSWER DOWNLOAD EXAMIANS APP
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