TS EAMCET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
Which of the following is not a mineral of fluorine?
- A Fluorspar
- B Cryolite
- C fluoropatite
- D Carnallite
Answer & Solution
Correct Answer
(D) Carnallite
Step-by-step Solution
Detailed explanation
Fluorine is present mainly as insoluble fluorides (fluorspar CaF2 , cryolite Na3AlF6 and fluoroapatite 3Ca3(PO4)2.CaF2) and small quantities are present in soil, river water plants and bones and teeth of animals. Carnalite is KCl.MgCl2.6H2O.It does not contain fluorine.
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