Reddish brown powder on iron is dissolved in water. This solution will- a. Change blue litmus paper red. b. Change red litmus paper blue. c. Change blue litmus paper green d. Change red litmus paper yellow.
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Answer:
b) Change red litmus paper blue.
Explanation:
Because the formula of rust,
Fe2O3 + H20 ---> Fe2O3•xH2O
This is an metal oxide which is amphoteric as well as basic in nature and base change red litmus blue.
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Answered by
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Explanation:
Among the various options given in question statement the correct option is the second one that is Change red litmus paper blue.
The reddish brown powder of iron that we are considering is actually called rust. Rust when dissolved in water forms a basic solution.
Reactive metals on reaction with steam(water) form corresponding oxide, which are alkaline in nature as they turn red litmus paper into blue coloured paper
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