Question

A mixture of iron filings and sulphur powder is divided into two partsand given totwostudents A and B respectively. Student A heated the mixture strongly and then addedthe following reagents while Student B added the following reagents directly to thesample provided. The reagents are: a) Dil. HCl b) Carbon disulphide. Mention the difference in the observations of A and B in both the cases

Answer 1

Answer:

s part 'A' is heated, a compound FeS is formed by the reaction between iron filings and sulphur. When dilute HCl is added to part A, FeS will react with dil HCl to form

gas which has smell of rotten eggs and will turn lead acetate paper black. <br>

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<br> As part 'B' in not heated, so B is a mixture of iron fillings and sulphur powder. When dil, HCl is added to it, iron filings react with dill. HCl to form

which burns with a 'pop' sound if burning match stick is brought near it. <br>

Explanation:

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