Purification And Characterisation Of Organic Compounds Question 108
Question: When lime stone is heated strongly, it gives off $ CO_2 $ . In metallurgy this process is known as
[MP PET/PMT 1988]
Options:
A) Calcination
B) Roasting
C) Smelting
D) Ore dressing
Show Answer
Answer:
Correct Answer: A
Solution:
$ CaCO_3\to CaO+CO_2 $ Heating the ore in absence of air is calcination.