Advertisements
Advertisements
प्रश्न
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?
उत्तर
The flame test of the salt gives persistent golden yellow colourisation which suggests the presence of Na+ ion.
APPEARS IN
संबंधित प्रश्न
State your observations when Barium chloride solution is mixed with Sodium Sulphate Solution.
Match the salts given in Column I with their method of preparation given in Column II
Column I | Column II | ||
1 | Pb(NO3)2 from PbO | A | Simple displacement |
2 | MgCl2 from Mg | B | Titration |
3 | FeCl3 from Fe | C | Neutralization |
4 | NaNO3 from NaOH | D | Precipitation |
5 | ZnCO3 from ZnSO4 | E | Combination |
Name a solution that will separate the component of the following mixture: Zn(OH)2 from Pb(OH)2
Choose the correct answer from the options given below :
Color of ferrous ion is
Choose the correct answer from the options given below :
Which one is colourless anion?
Sodium hydroxide solution can be used to distinguish between i. iron (II) sulphate solution and (ii) iron (III) sulphate solution; because these solutions give different coloured precipitates with sodium hydroxide solution. Give the colour of the precipitate formed with each of the solution.
What do you understand by amphoteric oxide?
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?
Which of the following about oxides is correct?
Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.