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Precipitation Reaction

Which of the ...

Question

Which of the following statements is correct?

A

Only one reactant is involved in a combination reaction

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B

Only one product is formed in a decomposition reaction

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C

Photolytic decomposition reactions require heat

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D

Electrolytic decomposition reactions require electricity

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Solution

The correct option is D
Electrolytic decomposition reactions require electricity

In a combination reaction, a single product is formed and in a decomposition reaction, only one reactant is involved. Also, photolytic decomposition reactions require light.

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Similar questions

Q. Decomposition reactions require energy either in the form of heat or light or electricity for breaking down the reactants. Write one equation each for decomposition reactions where energy is supplied in the form of heat, light and electricity.

Q. If which of the following reaction is there only one reactant?

(a) combination reaction
(b) decomposition reaction
(c) single displacement reaction
(d) double displacement reaction

Q. Question 15

The following reaction is used for the preparation of oxygen gas in the laboratory.

2 {KClO}_{3} (s) Heat \to 2 KCl (s) + 3 O_{2} (g)

Which of the following statement(s) is (are) correct about the reaction?
(a) It is a decomposition reaction and endothermic in nature.
(b) It is a combination reaction.
(c) It is a decomposition reaction and accompanied by release of heat.
(d) It is a photochemical decomposition reaction and exothermic in nature.

The decomposition reaction in which heating is involved is called thermal decomposition.

Q. During decomposition reactions, energy in the form of _______ is required.
(More than one option can be correct)

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