Chemistry Which one of the following mineral does not contain oxygen ? Calcite Haematite Cryolite Bauxite Calcite Haematite Cryolite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is : K1 = K2/2 K 1 = 1 /K2 K1 = K2 K1 = 2K2 K1 = K2/2 K 1 = 1 /K2 K1 = K2 K1 = 2K2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a spoon is to be electroplated with nickel the spoon is Made cathode and a pure nickel red, the anode Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made anode and a pure nickel rod, the cathode Made cathode and a pure nickel red, the anode Dipped in a nickel sulphate solution Coated with nickel sulphate and dried Made anode and a pure nickel rod, the cathode ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aqua regia is a 1 : 3 mixture, by volume, of Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid Conc. sulphuric acid and conc. nitric acid Conc. hydrochloric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid Conc. sulphuric acid and conc. nitric acid Conc. hydrochloric acid and conc. nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 92 89 86 96 92 89 86 96 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrogen dioxide, ether Nitrous oxide, Chloroform Ether, Ammonia Chloroform, Nitrogen dioxide Nitrogen dioxide, ether Nitrous oxide, Chloroform Ether, Ammonia Chloroform, Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
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