Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More abundant than hydrogen More stable Lighter than hydrogen Non-combustible More abundant than hydrogen More stable Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is a : Liquid metal Liquid non-metal Solid metal Solid non-metal Liquid metal Liquid non-metal Solid metal Solid non-metal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Corrosion Reduction Galvanisation Sublimation Corrosion Reduction Galvanisation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen fixation is a process of Assimilation of nitrate Conversion of organic nitrogen to proteins Utilisation of nitrogen gas Conversion of molecular nitrogen to ammonia Assimilation of nitrate Conversion of organic nitrogen to proteins Utilisation of nitrogen gas Conversion of molecular nitrogen to ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The BOD values of water indicate the Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Fire-fighting clothes' are made from Talc Steatite Mica Asbestos Talc Steatite Mica Asbestos ANSWER DOWNLOAD EXAMIANS APP
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