Question

Differentiate between the following:
1- Thermal decomposition & thermal dissociation
2- Neutralization reaction & a precipitation reaction
3- Electrolytic decomposition & photochemical decomposition
4- A catalyst & a promoter.
5- An acidic oxide & a basic oxide​

Answer 1

Answer:

1 The difference between thermal decomposition and thermal dissociation is that thermal decomposition is the breakdown of large substances into smaller substances using heat whereas thermal dissociation is the ionization of a substance using heat.

2 Neutralisation reactions is a chemical double decomposition reaction in which H+ ions of an acid reacts with OH- ions of a base to form salt and water. In this reaction the the products formed are soluble. Whereas during precipitation, The solid particles, (precipitate) is formed.

3Electrolytic decomposition: “A decomposition reaction which is brought about by the passage of electric current.” Photochemical decomposition: “A decomposition reaction which takes place in presence of light.” e.g. decomposition of silver salts in the presence of sunlight.

4 The catalyst is the substance which can alter the rate of reaction, whereas the promoter is the substance which is added during the reaction will increase the efficiency of the catalyst.

5 An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide. An amphoteric solution is a substance that can chemically react as either acid or base.

Explanation:

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