Chemistry Which of the following is not a method of preparing oxygen? Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Reduction Galvanisation Corrosion Sublimation Reduction Galvanisation Corrosion Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry If lime water is kept in the air, it turns milky due to presence of : Nitrogen Oxygen Sulphurdioxide Carbondioxide Nitrogen Oxygen Sulphurdioxide Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Ethylene glycol Gaseous formaldehyde Formaldehyde in water Formaldehyde in methanol Ethylene glycol Gaseous formaldehyde Formaldehyde in water Formaldehyde in methanol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following electrodes is used in strongly alkaline solution Mercury - mercuric oxide electrode Silver - silver chloride electrode Mercury - mercurous sulphate electrode Mercury - mercurous chloride electrode Mercury - mercuric oxide electrode Silver - silver chloride electrode Mercury - mercurous sulphate electrode Mercury - mercurous chloride electrode ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 16 18 17 19 16 18 17 19 ANSWER DOWNLOAD EXAMIANS APP
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