Cryolite is :
Correct answer: D. Sodium hexafluoroaluminate(III)
- A. Calcium fluoride
- B. Potassium hexafluoroaluminate(III)
- C. Basic magnesium carbonate
- D. Sodium hexafluoroaluminate(III)
Explanation
The correct answer is Option D: Sodium hexafluoroaluminate(III). Cryolite is an ore of sodium with the chemical formula Na3[AlF6], making the IUPAC name of this complex salt sodium hexafluoroaluminate(III). The other options, such as calcium fluoride and potassium hexafluoroaluminate, do not match the chemical composition and properties of cryolite.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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