Question

Arun took a pale green substance X in a test tube and heated it over a flame. he observed a color change along with the smell of burning sulphur
1. identify X
2. identify the product formed
3. identify the type of chemical reaction

Answer 1

Hey dude......

● X is Iron Sulphate
● Product: Iron (Fe) and SO4
● The reaction is Thermal decomposition.

Hope this may help u.....

Answer 2

Answer :

(1) The 'X' is, Ferrous sulfate $(FeSO_4)$

(2) The product formed are, ferric oxide, sulfur dioxide and sulfur trioxide.

(3) This is a thermal decomposition type of chemical reaction.

Explanation :

When the pale green substance (ferrous sulfate) is heated over a flame then it gives ferric oxide that is brown in color, sulfur dioxide and sulfur trioxide as a products.

The sulfur dioxide and sulfur trioxide are the gases.

The balanced chemical reaction will be :

$FeSO_4(s)\overset{Heat}\rightarrow Fe_2O_3(s)+SO_2(g)+SO_3(g)$

This reaction is a thermal decomposition reaction.

Thermal decomposition reaction : It is a chemical reaction in which the chemical decomposition takes place by the heat.

Hence, the 'X' is, Ferrous sulfate $(FeSO_4)$. The product formed are, ferric oxide, sulfur dioxide and sulfur trioxide. This is a thermal decomposition type of chemical reaction.