हिंदी

Select from the List the Gas that Matches the Description Given in Case this Gas is Used as a Reducing Agent in Reducing Copper Oxide to Copper - Chemistry

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प्रश्न

Select from the list the gas that matches the description given in case

[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]

This gas is used as a reducing agent in reducing copper oxide to copper

उत्तर

Ammonia

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Chemical Properties of Ammonia
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2014-2015 (March) Science Paper 2

संबंधित प्रश्न

The acid which is prepared by catalytic oxidation of ammonia.


Give balanced chemical equations for Reaction of ammonia with excess chlorine.


A gas ‘A’ reacts with another gas ‘B’ in the presence of a catalyst to give a colourless gas ‘C’. The gas ‘C’ when comes in contact with air produces a brown gas ‘D’. The solution of ‘A’ in water turns red litmus blue. Explain the observations.


Give balanced chemical equations for of the following :

Reaction of ammonia with excess chlorine.


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.

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

FeSO4


(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)?


Write the equation for the following :

Ammonium chloride is treated with sodium hydroxide.


On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?


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.


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