Answer available
Class 10 · Chemistry · Analytical Chemistry
Name the gas evolved when sodium hydroxide solution is warmed with an ammonium salt, and state how it is identified.
3 marksMediumShort answer
Class 10 · ICSE · Chemistry
Analytical Chemistry
Identification of cations using sodium hydroxide and ammonium hydroxide solutions and the colours of the precipitates formed.
- Questions
- 11
- PYQs
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- 0
Syllabus mapping: ICSE syllabus (CISCE)
Questions
11 questions in this chapter.
- Answer available
Class 10 · Chemistry · Analytical Chemistry
A reddish-brown precipitate with sodium hydroxide, insoluble in excess, indicates the presence of:
1 markMediumMCQ
- Answer available
Class 10 · Chemistry · Analytical Chemistry
Name the gas evolved when dilute hydrochloric acid is added to a carbonate, and state how it is identified.
2 marksMediumShort answer
- Answer available
Class 10 · Chemistry · Analytical Chemistry
State what is observed when ammonium hydroxide solution is added, first a little and then in excess, to a solution of copper(II) sulphate.
3 marksMediumShort answer
- Answer available
Class 10 · Chemistry · Analytical Chemistry
State the observations when sodium hydroxide solution is added, first a little and then in excess, to zinc sulphate solution, and write the equations.
3 marksMediumStructured
- Answer available
Class 10 · Chemistry · Analytical Chemistry
A white precipitate that dissolves in excess sodium hydroxide but not in excess ammonium hydroxide indicates:
1 markMediumMCQ
- Answer available
Class 10 · Chemistry · Analytical Chemistry
How would you distinguish between a solution of iron(II) sulphate and one of iron(III) chloride using sodium hydroxide solution?
3 marksMediumShort answer
- Answer available
Class 10 · Chemistry · Analytical Chemistry
A salt solution gives a dirty green precipitate with sodium hydroxide solution, insoluble in excess. Identify the cation and write the equation for the reaction.
3 marksMediumStructured
- Answer available
Class 10 · Chemistry · Analytical Chemistry
A salt solution gives a white precipitate with sodium hydroxide solution which dissolves in excess to give a colourless solution. Identify the two cations this could be and state how ammonium hydroxide distinguishes between them.
3 marksMediumStructured
- Answer available
Class 10 · Chemistry · Analytical Chemistry
A white precipitate is formed when sodium hydroxide is added to a salt solution, and it does not dissolve in excess. Name the cation and state one further test.
3 marksMediumShort answer
- Answer available
Class 10 · Chemistry · Analytical Chemistry
On adding sodium hydroxide solution to a salt solution, a white precipitate is formed that dissolves in excess sodium hydroxide. The same white precipitate is obtained with ammonium hydroxide and it also dissolves in excess ammonium hydroxide. Identify the cation present and write the formula of the precipitate.
3 marksMediumStructured