Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water None of these Calcium Magnesium Manganese None of these Calcium Magnesium Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen fixation is a process of Utilisation of nitrogen gas Conversion of organic nitrogen to proteins Conversion of molecular nitrogen to ammonia Assimilation of nitrate Utilisation of nitrogen gas Conversion of organic nitrogen to proteins Conversion of molecular nitrogen to ammonia Assimilation of nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as preservative for foodstuff ? Sodium Benzoate Glycerine Picric acid Sodium Chloride Sodium Benzoate Glycerine Picric acid Sodium Chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of Gammaxane is Benzene hexachloride Chloro benzene Toluene Aniline Benzene hexachloride Chloro benzene Toluene Aniline ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? The paper ignites There is no reaction. There is a crackling sound There is a violent explosion. The paper ignites There is no reaction. There is a crackling sound There is a violent explosion. ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' Antoine Lavoisier Democritus Robert Boyle John Dalton Antoine Lavoisier Democritus Robert Boyle John Dalton ANSWER DOWNLOAD EXAMIANS APP
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