Chemistry - Metallurgy Question with Solution | TestHub
Match each metallurgical operation (List-I) with all correct descriptors of the major gaseous product(s) evolved (List-II)
List - I (Process) | List - II (Property of any gas evolved) |
|---|---|
(P) Calcination of malachite | (1) Green house gas |
(Q) Calcination of limonite | (2) Linear molecule |
(R) Strong roasting of argentite | (3) Non-linear molecule |
(S) Roasting of copper pyrite | (4) Responsible for acid rain |
| (5) Acts as an oxidizing agent (in suitable reactions) |
Select the most appropriate matching of List-I with List-II :
Options:
Answer:
Solution:
(P) Calcination of malachite [CuCO₃·Cu(OH)₂] releases CO₂ (greenhouse gas, linear) and H₂O (greenhouse gas, non-linear)
(Q) Calcination of limonite [Fe₂O₃·3H₂O] releases H₂O vapor (greenhouse gas, non-linear)
(R) Roasting of argentite [Ag₂S] releases SO₂ gas (non-linear, causes acid rain, acts as an oxidizing agent)
(S) Roasting of copper pyrite [CuFeS₂] also releases SO₂ gas
