Question

a spoonful of rust is mixed in small amount of water and the suspension is tested with Litmus Paper. what is the observation and conclusion of this activity

Answer 1

Hey there !

We know that Rust is a substance formed when iron reacts with moist air. Rust has a chemical formula of Fe₂0₃. x H₂O

Since Fe is a metal, Rust is nothing but a metal oxide.

We know that Metal oxides are basic in nature. Hence on adding water to rust we get Basic Hydroxide.

Observation: So the solution will change red litmus paper to blue and blue litmus paper has no change.

Conclusion: Rust is basic in nature.

Hope my answer helped !

Answer 2

the materials needed for this activity are iron,oxygen water,spoonful of rust,test tube and a paper

THE PROCESS : take a test tube and dissolve Oxygen water and a spoonful of rust in the test tube and at

add only a very little amount of water now shake the suspension well and test the solution with red litmuspaper. You can see then the red litmus paper turns blue.

So,from this activity we can say that

rust is basic in nature

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