Question

A green compound ‘X’ on undergoing thermal decomposition produces 2 gases
‘A’ and ‘B’ and another brown coloured compound ‘C’.
(a) Name compound ‘X’.
(b) Name the products ‘A’, ‘B’ and ‘C’.
(c) Write 2 observations with respect to this reaction.
(d) Write a balanced chemical equation for this reaction

Answer 1

here is your answer and i think i will tell ma'am about this

(a) x is FeS04

(b) A-SO3 ; B-SO2 ; C-Fe2O3

(c) it is a chemical reaction and forms crystals

(d) 2FeSO4 gives rise to Fe2O3 + SO2 + SO3

Answer 2

The answers to the following questions are given as follows:

(a) The compound X is Ferrous (II) Sulphate, i.e., FeSO4 .

(b) The products A, B and C are Sulphur Trioxide gas (SO3), Sulphur Dioxide gas (SO2) and Ferric Oxide (Fe2O3) respectively.

(c) The two observations are as follows:

• The gases evolved during this thermal decomposition are colourless.
• These gases have a characteristic pungent odour.

(d) The balanced chemical reaction is given as;

2 FeSO4 (s) → Fe2O3 (s) + SO2 (g) + SO3 (g)