Chemistry The metal ion present in Vitamin B12 is Iron Zinc Nickel Cobalt Iron Zinc Nickel Cobalt ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 200 500 50 100 200 500 50 100 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Ethane Methane Butane Propane Ethane Methane Butane Propane 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 B D C A B D C A ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Vanadium Iodine Argon Sulphur Vanadium Iodine Argon Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mark the compound which possess ionic, covalent and coordinate bonds. NH4Cl SO3 SO2 H2O NH4Cl SO3 SO2 H2O ANSWER DOWNLOAD EXAMIANS APP
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