Chemistry Which of the following is a secondary pollutant ? CO NO PAN SO2 CO NO PAN SO2 ANSWER DOWNLOAD EXAMIANS APP
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 The octane number of zero is assigned to n-heptane 3-methyl octane iso-octane 2-methyl octane n-heptane 3-methyl octane iso-octane 2-methyl octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is Ca(OH)2 Na2SO4.10H2O Na2CO3.10H2O NaHCO3 Ca(OH)2 Na2SO4.10H2O Na2CO3.10H2O NaHCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is generally kept under Glycerine Water Kerosene oil Alcohol Glycerine Water Kerosene oil Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The amount of chlorine available in water after disinfection is called as Free chlorine Combined available chlorine Free available chlorine Residual chlorine Free chlorine Combined available chlorine Free available chlorine Residual chlorine ANSWER DOWNLOAD EXAMIANS APP