Advertisements
Advertisements
Question
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
Solution
Addition of caustic soda to ZnSO4 solution:
\[\ce{ZnSO4 + 2NaOH ->\underset{\text{White gelatinous ppt.}}{Zn(OH)2 v + Na2SO4}}\]
APPEARS IN
RELATED QUESTIONS
Choose the most appropriate answer from the following list of oxides which fit the description.
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
A basic oxide.
Name
a metallic hydroxide soluble in excess of NH4OH.
Name a strong alkali.
Name a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
Name the metal hydroxides which are soluble in caustic soda solution.
What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?
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?
