Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Aluminium Silver Copper Zinc Aluminium Silver Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a spoon is to be electroplated with nickel the spoon is Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made cathode and a pure nickel red, the anode Made anode and a pure nickel rod, the cathode ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a covalent compound ? Carbon tetrachloride Sodium chloride Calcium chloride Magnesium fluoride Carbon tetrachloride Sodium chloride Calcium chloride Magnesium fluoride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Poison used for killing rats is Magnesium phosphide (Mg3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) Magnesium phosphide (Mg3P2) Magnesium nitride (Mg3N2) Calcium phosphide (Ca3P2) Zinc phosphide (Zn3P2) ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 36 53 19 17 36 53 19 17 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coloured discharge tubes for advertisement mainly contain Argon Xenon Helium Neon Argon Xenon Helium Neon ANSWER DOWNLOAD EXAMIANS APP
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