Advertisements
Advertisements
Question
Choose the correct answer from the options given below :
Sodium zincate (Na2ZnO2) is
Options
Pale blue ppt
Reddish brown ppt
Colourless
Dirty green ppt
Solution
Sodium zincate (Na2ZnO2) is Colourless
APPEARS IN
RELATED QUESTIONS
Identify the salts P and Q from the observations given below:
On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution, which is soluble in Ammonium hydroxide solution.
Name a solution that will separate the component of the following mixture: Zn(OH)2 from Pb(OH)2
Name a solution that will separate the component of the following mixture: CuO from ZnO
What will you observe when barium chloride solution is added to iron(II) sulphate solution.
The questions (i) to (v) refer to the following salt solutions listed A to F :
A. Copper nitrate
B. Iron (II) sulphate
C. Iron (III) chloride
D. Lead nitrate
E. Magnesium sulphate
F. Zinc chloride
(i) Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution/
(ii) Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?
(iii) Which solution will give a white precipitate when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
(iv) Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it?
(v) Which solution gives a white precipitate with excess ammonium hydroxide?
Give one chemical test to distinguish between the following pair of compounds:
Iron (II) chloride solution and iron (III) chloride solution.
State the colour of the residue formed when nitrates of :
1. Calcium
2. Zinc
3. Lead
4. Copper are strongly heat
Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Sodium hydroxide solution is added to solution A. A white precipitate is formed which is insoluble in excess sodium hydroxide solution. What is the metal ion present in solution A?
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
