What Do You Observe When Caustic Soda Solution is Added to the Following Solution: First a Little and Then in Excess : Cuso4 - Chemistry

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

Sum

Addition of Caustic soda to CuSO₄Solution :
\[\ce{CuSO4 + 2NaOH ->\underset{\text{Pale blue ppt.}}{ Cu(OH)2 v + Na2SO4}}\]

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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 5.4 | Page 85

State one relevant observation for the following.

Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.

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

Name a strong alkali.

Name the metal hydroxides which are:

Sparingly soluble

In caustic soda solution

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

Name: A strong alkali

Name: A weak alkali.

Name: Two coloured ions

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.