Chemistry Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ? Methylene blue Methyl orange Methyl red Phenolphthaline Methylene blue Methyl orange Methyl red Phenolphthaline ANSWER DOWNLOAD EXAMIANS APP
Chemistry An oxidising agent is a An electron donor In a chemical reaction its oxidation number increases It releases H2 in a chemical reaction An electron acceptor An electron donor In a chemical reaction its oxidation number increases It releases H2 in a chemical reaction An electron acceptor ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cyanide poisoning causes death in seconds because It causes Lysis of red blood cells It breaks the electron transport chain It denatures enzymes of the heart/muscle It causes cardiac arrest It causes Lysis of red blood cells It breaks the electron transport chain It denatures enzymes of the heart/muscle It causes cardiac arrest ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a donor atom? Arsenic Phosphorus Antimony Aluminium Arsenic Phosphorus Antimony Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Magnesium Calcium None of these Manganese Magnesium Calcium None of these Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Phenolphthalein Crystal violet Aniline blue Alizarin Phenolphthalein Crystal violet Aniline blue Alizarin ANSWER DOWNLOAD EXAMIANS APP
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