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Question
What type of reaction is represented by the following equation?
NH4NO2 → N2 + 2H2O
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Solution
Decomposition reaction
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RELATED QUESTIONS
A solid substance P which is very hard is used in the construction of many buildings, especially flooring. When substance P is heated strongly, it decomposes to form another solid Q and a gas R is given out. Solid Q reacts with water with the release of a lot of heat to form a substance S. When gas R is passed into a clear solution of substance S, then a white precipitate of substance T is formed. The substance T has the same chemical composition as starting substance P.
(a) What is substance P? Write its common name as well as chemical formula.
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(c) What is gas R?
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(e) What is substance T? Name any two natural forms in which substance T occurs in nature.
The white solid compound A decomposes quite rapidly on heating in the presence of a black substance X to form a solid compound B and a gas C. When an aqueous solution of compound B is reacted with silver nitrate solution, then a white precipitate of silver chloride is obtained along with potassium nitrate solution. Gas C does not burn itself but helps burn other things.
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(b) What is compound B?
(c) What is gas C?
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(e) What is the general name of substances like X?
State an important use of decomposition reactions.
What type of chemical reaction take place when lime-stone is heated?
What type of chemical reaction take place when silver bromide is exposed to sunlight?
What is a decomposition reaction?
Which of the following can be decomposed by the action of light?
(a) NaCl
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When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
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\[\ce{Zn_{(s)} + H2SO4 -> ZnSO4_{(s)} + H2_{(g)}}\]
What does one mean by endothermic reaction? Give example.
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2 g of silver chloride is taken in a china dish and the china dish is placed in sunlight for some time. What will be your observation in this case? Write the chemical reaction involved in the form of a balanced chemical equation. Identify the type of chemical reaction.
Differentiate between direct combination reaction and a decomposition reaction.
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\[\ce{2KClO3_{(s)} ->[Heat] 2KCl + 3O2_{(g)}}\]
Which of the following statement about the reaction is correct?
Which one of the following processes involves chemical reactions?
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When lead nitrate is heated strongly in a boiling tube, two gases are liberated and a solid residue is left behind in the test tube.
- Name the type of chemical reaction and define it.
- Write the name and formula of the coloured gas liberated.
- Write the balanced chemical equation for the reaction.
- Name the residue left in the test tube and state the method of testing its nature (acidic/basic).
