Name the metal hydroxide which are insoluable and soluable in caustic soda solution.

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Solution

Yes,
Fe(OH)₃ is insoluble in NaOH solution whereas Zn(OH)₂ is readily soluble.

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Q. Name
(a) a metallic hydroxide soluble in excess of NH₄OH.
(b) a metallic oxide soluble in excess of caustic soda solution.
(c) a strong alkali
(d) a weak alkali
(e) two coloured metal ions.
(f) two bases which are not alkalis but dissolve in strong alkalis.
(g) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Q. The chemical name of caustic soda is
a. sodium hydroxide
b. ammonium hydroxide
c. potassium hydroxide
d. magnesium hydroxide

What is the reaction of freshly precipitated aluminium hydroxide with caustic soda solution? Give equation.

Q. Caustic soda is insoluble in Water,ethanol and methanol.

State True or False:

Name :

(a) a yellow monoxide that dissolves in hot and concentrated caustic alkali.
(b) a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.
(c) a compound containing zinc in the anion.

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Name the metal hydroxide which are insoluable and soluable in caustic soda solution.

Yes, Fe(OH)3 is insoluble in NaOH solution whereas Zn(OH)2 is readily soluble.

Yes,
Fe(OH)₃ is insoluble in NaOH solution whereas Zn(OH)₂ is readily soluble.