Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234 C D A B C D A B ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitric acid does not react with Gold Zinc Iron Copper Gold Zinc Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, which is always found in free-state in nature? Gold Copper Sodium Silver Gold Copper Sodium Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Decreases the rate of reaction None of these Has no action on the rate of the reaction Increases the rate of the reaction Decreases the rate of reaction None of these Has no action on the rate of the reaction Increases the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Organic compounds are Covalent compounds Interstitial compounds Co-ordination compounds Ionic compounds Covalent compounds Interstitial compounds Co-ordination compounds Ionic compounds ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS