Bright Tutorials Bright Tutorials
ICSE Class 9 Chemistry Question 50 of 55

ICSE Questions Set in Previous Years — Question 50

Back to all questions
50
Question

Question 50

Dilute hydrochloric acid is added first to a mixture of iron and sulphur and then to a compound formed by iron and sulphur. Name the gases formed in each case.

Answer

Hydrogen gas is evolved when dil. hydrochloric acid is added first to a mixture of iron and sulphur

Fe + 2HCl (dil.) ⟶ FeCl2 + H2 ↑

Hydrogen sulphide (H2S) gas is evolved when dil. hydrochloric acid is added to compound formed by iron and sulphur.

FeS + 2HCl ⟶ FeCl2 + H2S