Chemistry Domestic cooking gas consists mostly of Hydrogen and acetylene Liquified butane and isobutane Ethylene and carbon monoxide Methane and ethane Hydrogen and acetylene Liquified butane and isobutane Ethylene and carbon monoxide Methane and ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding caustic soda boiling distillation adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Plutonium Thorium Zirconium Uranium Plutonium Thorium Zirconium Uranium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is All of these Ethane Methane Nitrogen All of these Ethane Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Pascal Dalton Avogadro Newton Pascal Dalton Avogadro Newton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a major green house gas? Carbon monoxide Chloro fluorocarbon Freon Carbon dioxide Carbon monoxide Chloro fluorocarbon Freon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP