MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryMetallurgyPrevious Year Questions
In the cryolite CaCl2 is added to: (AIPMT 2009)
A.Reduce emf of the cell
B.Increase emf of the cell
C.Decrease melting point✓ Correct
D.(b) and (c) both
Explanation
Cryolite is a sodium-aluminium-fluorine mineral and its chemical formula is 3 6 Na AlF . In a cryolite, calcium chloride is added as it helps to decrease the melting point. Therefore, the correct answer is option (c) decrease melting point.
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