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प्रश्न
Name the various types of chemical reactions.
उत्तर
The various types of chemical reactions are as follows:
- Combination reaction
- Decomposition reaction
- Displacement reaction
- Double displacement reaction
- Oxidation and reduction reaction
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संबंधित प्रश्न
Substitute formulae for names and balance the following equation:
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When water is added gradually to a white solid X, a hissing sound is heard and a lot of heat is produced forming a product Y. A suspension of Y in water is applied to the walls of a house during white washing. A clear solution of Y is also used for testing carbon dioxide gas in the laboratory.
(a) What could be solid X? Write its chemical formula.
(b) What could be product Y? Write its chemical formula.
(c) What is the common name of the solution of Y which is used for testing carbon dioxide gas?
(d) Write chemical equation of the reaction which takes place on adding water to slid X.
(e) Which characteristic of chemical reactions is illustrated by this example?
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chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride
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Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
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Fe2O3 + CO → Fe + CO2
Write a balanced equation for the following word equation:
Iron + Hydrochloric acid → Iron [II] chloride + Hydrogen
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- Ammonia first reacts with chlorine to give hydrogen chloride and nitrogen.
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