NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice
Which of the following processes involves smelting?
Options
- AZ n C O 3 → H e a t Z n O + C O 2
- BF e 2 O 3 + 3 C → H e a t 2 F e + 3 C O
- C2 P b S + 3 O 2 → H e a t 2 P b O + 2 S O 2
- DA l 2 O 3 . 2 H 2 O → H e a t A l 2 O 3 + 2 H 2 O
Correct answer
B. F e 2 O 3 + 3 C → H e a t 2 F e + 3 C O
Step-by-step solution
Smelting involves reduction with carbon so here it is case of smelting. F e 2 O 3 + 3 C → H e a t 2 F e + 3 C O Reactions given in options A and D involve calcination while that of in option C involves roasting.