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General Principles and processes of Isolation of Elements
medium
$MgO$ is used as a refractory material because
A
It has high melting point
B
It is a good conductor of heat
C
It is a good electrical insulator
D
All of these
Solution
The melting point of $MgO$ is very high. It has good thermal and very poor electrical conductivity. Hence, it is used as refractory material.
Standard 12
Chemistry
