मराठी

Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. Write a balanced chemical equation for the Black copper oxide

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प्रश्न

Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.

Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.

एका वाक्यात उत्तर
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उत्तर

\[\ce{CuO + 2NH3 -> Cu + 3H2O + N2}\]

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2024-2025 (March) Specimen Paper

संबंधित प्रश्‍न

Name the following

Solid obtained by passing ammonia over heated copper oxide


Name the following

Salt used to clean metal surface before soldering, tinning, etc.


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?

State whether each of the above reactions is an example of thermal decomposition or thermal dissociation.

Give a balanced chemical equation for the following:

Lab. preparation of ammonia using an ammonium salt.


Give balanced reactions for the following conversion:

Ammonia solution to an amphoteric hydroxide.


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


Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

FeSO4


Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:

CrCl3


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?


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