Chemistry Which of the following is not a method of preparing oxygen? 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 Fractional distillation of liquid air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The strongest acid of the following is O-nitrophenol P-nitrophenol M-nitrophenol P-chlorophenol O-nitrophenol P-nitrophenol M-nitrophenol P-chlorophenol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The water pollution in river is measured by the dissolved amount of Oxygen Nitrogen Ozone Chlorine Oxygen Nitrogen Ozone Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen fixation is a process of Utilisation of nitrogen gas Assimilation of nitrate Conversion of organic nitrogen to proteins Conversion of molecular nitrogen to ammonia Utilisation of nitrogen gas Assimilation of nitrate Conversion of organic nitrogen to proteins Conversion of molecular nitrogen to ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from An insect A seed plant A bacterium A fungus An insect A seed plant A bacterium A fungus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following commonly used materials, the one that is not an alloy is Brass Steel Copper Bronze Brass Steel Copper Bronze ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS