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प्रश्न
Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
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उत्तर
PbO
संबंधित प्रश्न
Write the probable colour of the following salt:
Calcium salts
Write the probable colour of the following salt:
Ferrous sulphate
Write the probable colour of the following salt:
Aluminium acetate
Name the probable cation present in each of the following solution:
Yellow coloured solution
Name the probable cation present based on the following observation:
Blue coloured solution.
On adding dilute ammonia solution to a colourless solution of a salt, a white gelatinous precipitate appears. This precipitate however dissolves on addition of excess of ammonia solution. Identify (Choose from Na, l, Zn, Pb, Fe)
(a) Which metal salt solution was used?
(b) What is the formula of white gelatinous precipitate obtained?
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Write balanced equation for the following reaction:
Chlorine and cold dilute sodium hydroxide solution.
State what do you observe when:
Lead nitrate and sodium chloride are mixed.
The questions (i) to (v) refer to the following salt solutions listed A to F:
- Copper nitrate
- Iron (II) sulphate
- Iron (III) chloride
- Lead nitrate
- Magnesium sulphate
- Zinc chloride
- Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution?
- Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution ?
- Which solution will give a white precipitate, when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
- Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it ?
- Which solution gives a white precipitate with excess ammonium hydroxide solution?
