Chemistry The gas which emits from rice field is Methane Ethane Nitrogen All of these Methane Ethane Nitrogen All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water gas is the combination of CO and H2O CO and H2 CO2 and CO CO2and H2 CO and H2O CO and H2 CO2 and CO CO2and H2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Sea water Rain water River water Lake water Sea water Rain water River water Lake water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Choose the incorrect statement pertaining to organic compounds They have low melting and boiling points They do not dissolve in water They are not easily combustible They contain mainly carbon and hydrogen They have low melting and boiling points They do not dissolve in water They are not easily combustible They contain mainly carbon and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Twice its vapour pressure Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Twice its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Alum Sodium carbonate Lime Potassium Permangante Alum Sodium carbonate Lime Potassium Permangante ANSWER DOWNLOAD EXAMIANS APP