The hydroxide which is soluble in excess...

The hydroxide which is soluble in excess of NaOH is .............

`Zn(OH)_(2)`

`Fe(OH)_(3)`

`Fe(OH)_(2)`

`Al(OH)_(3)`

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The correct Answer is:

Zinc Hydroxide is soluble in excess of NaOH due to the formation of soluble sodium tetrahydroxozincate(II).

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