Verified Solution • 2025–26 Session
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QJEEM21Che373: JEE Main 2021 Chemistry - Class 12 JEEM21Che373 Solution: Consider two chemical reactions (A) and (B) that take place…
Consider two chemical reactions (A) and (B) that take place during metallurgical process:
(A)
(B)
The correct option of names given to them respectively is :
(A)
(B)
The correct option of names given to them respectively is :
Multiple Choice Options
- A (A) is calcination and (B) is roasting
- B Both (A) and (B) are producing same product so both are roasting
- C Both (A) and (B) are producing same product so both are calcination
- D (A) is roasting and (B) is calcination
Step-by-Step Verified Solution
(A)
Heating in absence of oxygen in calcination.
(B)
Heating in presence of oxygen in roasting.
Hence, (A) is calcination while (B) in roasting.
Heating in absence of oxygen in calcination.
(B)
Heating in presence of oxygen in roasting.
Hence, (A) is calcination while (B) in roasting.