Question

The chemical name of [Zn(OH)4]^-2 is:
A. Tetrahydroxy zinc (II)
B. Tetrahydroxo zincate (lV)
C. Tetrahydroxo zincate (ll)
D. Pentahydroxy zincate (ll)

Right answer is C.

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Answer 1

Answer:

C. Tetrahydroxo zincate(ll)

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Answer 2

Answer:

The chemical name of [Zn(OH)4]^-2 is Tetrahydroxo zincate (ll)

Explanation:

Naming this coordination compound -

• In coordination compounds we study about the nomenclature of complex compounds.
• Sodium zincate's chemical name is H4Na2O4Zn, or Na2Zn(OH)4. Tetrahydroxy zincate is the term of the inorganic substance in question. It is a poisonous substance.

• Now, for metal (in its +2 coordinated state) the suffix ate is used.

        And tetra means 4 , hydroxo means OH.

• So, And the more electronegative ions (called ligands) always make compound in coordination with less electronegative metal where the metal is in central position and is coordinated by ligands.

• The IUPAC nomenclature of Tetrahydroxozincate(II)

        ion is[Zn(OH)4]2.

So, The chemical name of $[Zn(OH)4]^-2$ is Tetrahydroxo zincate (ll).

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