When a Metallic Oxide is Dissolved in Water, the Solution Formed Has a High Concentration of ____________ Ions

When a metallic oxide is dissolved in water, the solution formed has a high concentration of ____________ ions (H⁺, h₃O⁺, OH^-)

When a metal oxide is dissolved in water, the solution formed has a high concentration of OH^-

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Action of Alkalis on Certain Metals

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2016-2017 (March) Set 1

Q 1.1 | 5 marks

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 metallic hydroxide soluble in excess of NH₄OH.

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

Name the metal hydroxides which are soluble in caustic soda solution.

What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : CuSO₄

Give two examples of amphoteric hydroxides.

Name: Two coloured ions

Name a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:

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