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

One Line Answer

Zn(OH)₂, Pb(OH)₂

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Action of Alkalis on Certain Metals

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Chapter 4: Analytical Chemistry - lntext Questions [Page 70]

Chapter 4 Analytical Chemistry
lntext Questions | Q 4. (b) (i) | Page 70

State one relevant observation for the following.

Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is in excess.

Give a chemical test to distinguish between the given pair of chemicals:

Lead nitrate solution and zinc nitrate 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 strong alkali

Name: A weak alkali.

Name: Two coloured ions

Name a compound containing zinc in the anion.

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

Why the alkali is added drop by drop to the salt solution?

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