Explain the following reaction with one suitable example for each.(a)

1.	Explain the following reaction with one suitable example for each.(a) Combination reactions(b) Decomposition reaction(c) Displacement reaction(d) Double decomposition reaction
Answer» (a) Combination reactions: In this reaction, two or more substances combine to form a new substance, e.g. Burning of hydrogen in air. (b) Decomposition reaction: In this reaction, a substance breaks upon heating to form two or simpler substances, e.g. Electrolysis of water. (c) Displacement reaction: In this reaction a more reactive element displaces a less reactive element from its compound, e.g. Reaction of iron with copper sulphate. (d) Double decomposition reaction: In this reaction, two compounds in solution state react with each other to form two new substances by exchanging their radicals, e.g. Reaction of sodium hydroxide with dilute hydrochloric acid.

Explain the following reaction with one suitable example for each.(a) Combination reactions(b) Decomposition reaction(c) Displacement reaction(d) Double decomposition reaction

Answer»

(a) Combination reactions: In this reaction, two or more substances combine to form a new substance, e.g. Burning of hydrogen in air.

(b) Decomposition reaction: In this reaction, a substance breaks upon heating to form two or simpler substances, e.g. Electrolysis of water.

(c) Displacement reaction: In this reaction a more reactive element displaces a less reactive element from its compound, e.g. Reaction of iron with copper sulphate.

(d) Double decomposition reaction: In this reaction, two compounds in solution state react with each other to form two new substances by exchanging their radicals, e.g. Reaction of sodium hydroxide with dilute hydrochloric acid.

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