Chemistry Supersonic jet causes pollution by thinning of O 2 layer SO2 layer O3 layer CO2 layer O 2 layer SO2 layer O3 layer CO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Lake water River water Sea water Rain water Lake water River water Sea water Rain water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is a crystalline form of Alumina Limestone Glass Silica Alumina Limestone Glass Silica ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Citric acid Acetic acid Lactic acid Carbonic acid Citric acid Acetic acid Lactic acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Copper at cathode and oxygen at anode Copper at anode and oxygen at cathode. Copper at cathode and anodes dissolve to give copper Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at anode and oxygen at cathode. Copper at cathode and anodes dissolve to give copper Hydrogen at cathode and oxygen at anode ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formation of ozone hole is maximum over Africa Antarctica India Europe Africa Antarctica India Europe ANSWER DOWNLOAD EXAMIANS APP