Chemistry Magnetite is FeCO3 Fe3O4 Fe2O3 2Fe2O3. 3H2O FeCO3 Fe3O4 Fe2O3 2Fe2O3. 3H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is no reaction. There is a violent explosion. There is a crackling sound The paper ignites There is no reaction. There is a violent explosion. There is a crackling sound The paper ignites ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is used in drinking water as a/an Coagulant Antibiotic Antiseptic Disinfectant Coagulant Antibiotic Antiseptic Disinfectant ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 Zero –4 4 8 Zero –4 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercially, sodium bicarbonate is known as Baking soda Bleaching powder Soda ash Washing soda Baking soda Bleaching powder Soda ash Washing soda ANSWER DOWNLOAD EXAMIANS APP
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