Question

When a student heated a colourless solid compound, then brown fumes of a gas are evolved. The colourless solid is most likely to be (1) ferrous sulphate
(2) lead carbonate
(3) lead nitrate
(4) lead sulphate

Answer 1

Answer:

FERROUS SULPHATE

Answer 2

When a student heated a colourless solid compound, then brown fumes of a gas are evolved. The colourless solid is most likely to be option 3) lead nitrate

Explanation:

When lead nitrate is heated, oxygen evaporates  and a  simpler material namely lead oxide, nitrogen dioxide  are evolved

$2Pb(NO_{3} )2 Colourless ->2PbO Yellow+ 4NO_{2} Brown+ O_{2}$

$NO_{2}$ gas gives brown smoke to the solution.

Therefore, the correct answer is option 3.

You can get all the answers of Chapter 5 in the link below:    

https://brainly.in/question/15041955

   

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