Chemistry Gold dissolves in Nitric acid Acetic acid Hydrochloric acid Aqua-regia Nitric acid Acetic acid Hydrochloric acid Aqua-regia ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is a crackling sound There is no reaction. The paper ignites There is a violent explosion. There is a crackling sound There is no reaction. The paper ignites There is a violent explosion. ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [Ti(H2O)6]3+ [CrO4]2− [CoF6]3+ [Cu(NH3)4]2+ [Ti(H2O)6]3+ [CrO4]2− [CoF6]3+ [Cu(NH3)4]2+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Air Hydrogen Carbon monoxide Methane Air Hydrogen Carbon monoxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest form of iron? Pig iron Cast iron Steel Wrought iron Pig iron Cast iron Steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coloured discharge tubes for advertisement mainly contain Argon Xenon Helium Neon Argon Xenon Helium Neon ANSWER DOWNLOAD EXAMIANS APP
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