English

A given white crystalline salt was tested as follows: A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?

Advertisements
Advertisements

Question

A given white crystalline salt was tested as follows:

A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?

One Line Answer
Advertisements

Solution

The flame test of the salt gives persistent golden yellow colourisation which suggests the presence of Na+ ion.

shaalaa.com
Action of Alkalis on Metal Oxides
  Is there an error in this question or solution?
Chapter 13: Practical Work - EXERCISE-13 [Page 229]

APPEARS IN

S.P. Singh Concise Chemistry [English] Class 10 ICSE
Chapter 13 Practical Work
EXERCISE-13 | Q 3. (c) | Page 229

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: CaO from PbO


Name a solution that will separate the component of the following mixture: CuO from ZnO


You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Both copper hydroxide and zinc hydroxide


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?


State the colour of the residue formed when nitrate of calcium is strongly heated.


Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


What do you understand by amphoteric oxide?


Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×