Chemistry Where does the oxygen that keeps us alive come from? Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Sulphonation Acceleration Galvanization Vulcanization Sulphonation Acceleration Galvanization Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Iron Titanium Copper Aluminium Iron Titanium Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Krypton Helium Argon Xenon Krypton Helium Argon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is NaHCO3 Na2SO4.10H2O Na2CO3.10H2O Ca(OH)2 NaHCO3 Na2SO4.10H2O Na2CO3.10H2O Ca(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo chemical smog is a resultant of the reaction among CO, O2 and peroxy acetyl nitrate in the presence of Sunlight High concentration of NO2, O3, and CO in the evening CO, CO2 and NO2at low temperature NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, O2 and peroxy acetyl nitrate in the presence of Sunlight High concentration of NO2, O3, and CO in the evening CO, CO2 and NO2at low temperature NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight ANSWER DOWNLOAD EXAMIANS APP
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