Name: Two Coloured Ions - Chemistry

Name: Two coloured ions

One Word/Term Answer

Cu²⁺, Mn²⁺

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Action of Alkalis on Certain Metals

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Chapter 4: Analytical Chemistry - Exercise 1 [Page 85]

Chapter 4 Analytical Chemistry
Exercise 1 | Q 11.5 | Page 85

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

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 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 : ZnSO₄

Name: A weak alkali.

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

Name the chloride of a metal which is soluble in excess of ammonium hydroxide.

Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.

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

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