Name a metallic oxide soluble in excess of caustic soda solution.

One Line Answer

Zinc oxide (ZnO)

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Action of Alkalis on Certain Metals

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Chapter 4: Analytical Chemistry - EXERCISE-4 [Page 68]

Chapter 4 Analytical Chemistry
EXERCISE-4 | Q 2. (b) | Page 68

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

A basic oxide.

Choose the most appropriate answer from the following list of oxides which fit the description.

[SO₂, SiO₂, Al₂O₃, MgO, CO, Na₂O]

An oxide which dissolves in water forming an acid

Name a strong alkali.

Name two bases which are not alkalis but dissolves in strong alkalis.

Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.

Name a metallic hydroxide soluble in excess of NH₄OH.

Name: A strong alkali

Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.

What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?

Write balanced equations for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.