Verified Solution • 2025–26 Session
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QJEEM19Ch8522: JEE Main 2019 Chemistry - Class 12 JEEM19Ch8522 Solution: The pair that does NOT require calcination is -
The pair that does NOT require calcination is -
Multiple Choice Options
- A Fe2O3 and CaCO3⋅MgCO3
- B ZnCO3 and CaO
- C ZnO and Fe2O3⋅xH2O
- D ZnO and MgO
Step-by-Step Verified Solution
In calcination, we convert a compound or ore into oxide.
In option (D) you can see there is ZnO and MgO, as they are already in oxide form so no calcination required for then.
In option (D) you can see there is ZnO and MgO, as they are already in oxide form so no calcination required for then.