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When Ammonium Hydroxide is Added to a Solution B, a Pale Blue Precipitate is Formed. T - Chemistry

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प्रश्न

When ammonium hydroxide is added to a solution B, a pale blue precipitate is formed. The pale blue precipitate dissolves in excess of ammonium hydroxide to give an inky blue solution. What is the cation (positive ion) present in solution B? What is the probable colour of solution B?
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उत्तर

The cation is Cu2+ ion. Solution B is copper sulphate. It is bright blue in colour.
 
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अध्याय 9.1: Ammonia - Exercise 5 [पृष्ठ २२३]

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फ्रैंक Chemistry Part 2 [English] Class 10 ICSE
अध्याय 9.1 Ammonia
Exercise 5 | Q 4 | पृष्ठ २२३

संबंधित प्रश्न

Write balanced chemical equations for the following:

When the excess of ammonia is treated with chlorine.


Study the flow chart given and give balanced equations to represent the reactions A, B and C:

\[\ce{Mg3N2 ->[A] NH3 <=>[B][C] NH4Cl}\]


Name the following

 Substance used to dry ammonia


Give balanced reactions for the following conversion:

Ammonia to nitrogen using oxygen.


Give balanced equation to prove that ammonia Has the element hydrogen in it.


Ammonia reacts with a monobasic acid (A) to form a salt (B). B decompose at about 250oC to give two products (C) and (D), leaving no residue. The oxide (D) is a liquid at room temperature and neutral to moist litmus, while gas (C) is a neutral  oxide. Identify A, B, C, D. Write the balanced equation involved the above process.

Write equation for the following:
Burning of ammonia in oxygen.


(a) Name the catalyst used in 1(ii)
(b) In the reaction referred to in 1(ii), the catalyst glows red hot. Why?
(c) What is the name of the industrial process which starts with the reaction reffered to in 1 (ii)?


Look at the following reaction :
A. Nitrogen + metal → compound X
B. X + water → ammonia + another compound
C. Ammonia + metal oxide → metal + water + N2

(i) One metal that can be used for reaction in A is magnesium.

(a) Write the formula of the compound X, that is formed.
(b) Write the balanced equation for reaction B, where Xis the compound formed.
( c) Which property of ammonia is demonstrated by reaction C?


How is ammonia dried and collected in the laboratory?


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