Chemistry The first metal used by a man was Copper Bronze Silver Brass Copper Bronze Silver Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most suitable unit for expressing nuclear radius is : Micron Fermi Nanometre Angstrom Micron Fermi Nanometre Angstrom ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Plaster of Paris' commonly used for setting broken bones is Calcium chloride Calcium sulphate Calcium nitrate Calcium carbonate Calcium chloride Calcium sulphate Calcium nitrate Calcium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Solar energy devices Transistors Semiconductors All of these Solar energy devices Transistors Semiconductors All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Ozone Barium peroxide Sodium peroxide Hydrogen peroxide Ozone Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
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