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Question

ake a mixture of iron fillings and sulphur powder in a test tube. Heat the test tube strongly till the mixture becomes red hot. Let the mixture cool and add dil. sulphuric acid to it. Which statement is true for the content of the test tube after the experiment?


A

A physical change takes place.

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B

Colourless and odorless gas evolves.

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C

Colourless gas with the smell of rotten eggs.

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D

Show the property of magnetism.

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Solution

The correct option is C

Colourless gas with the smell of rotten eggs.


On heating sulphur powder and iron fillings, a chemical reaction takes place resulting in the formation of hydrogen sulphide gas, which is colourless and has a smell of rotten eggs.


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