MolSynapsequestion bank

MolSynapse / Question bank / Basic Inorganic Nomenclature and Oxidation Number / Naming of oxyanions and hydrated salts

JEE Advanced levelSingle correct optionDifficulty 3 of 3bn215

Sodium hexafluorosilicate contains the $SiF X_{6} X^{2 -}$ ion. Which option gives its correct formula, the oxidation number of Si and the total number of atoms per formula unit?

A $Na X_{2} SiF X_{6}$ , $+ 4$ , 8 atoms
B $Na X_{4} SiF X_{6}$ , $+ 2$ , 11 atoms
C $Na X_{2} SiF X_{6}$ , $+ 4$ , 9 atoms
D $NaSiF X_{6}$ , $+ 5$ , 8 atoms

Answer: C

SiF X_{6} X^{2 -}

needs two

Na X^{+}

:

Na X_{2} SiF X_{6}

. Si:

x - 6 = - 2

,

x = + 4

. Atoms:

2 + 1 + 6 = 9

.

Practice Basic Inorganic Nomenclature and Oxidation Number More on Naming of oxyanions and hydrated salts

Previous questionNext question

More questions on Naming of oxyanions and hydrated salts