Chemistry Which of the following metals can displace copper from copper sulphate solution ? Mercury Platinum Iron Gold Mercury Platinum Iron Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is Ca Mg Na K Ca Mg Na K ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Phosphorous, Sodium and Nitrogen Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Sulphur, Phosphorous and Sodium Phosphorous, Sodium and Nitrogen Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular formula of phosphorous is P4 P2 P1 P3 P4 P2 P1 P3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is 3.05 gram 2.05 gram 4.05 gram 5.05 gram 3.05 gram 2.05 gram 4.05 gram 5.05 gram ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver nitrate solution is kept in brown bottles in laboratory because Brown bottles do not react with it It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it Brown bottles do not react with it It reacts with ordinary white bottles Brown bottles react with it Brown bottles stops the passage of light through it ANSWER DOWNLOAD EXAMIANS APP
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