Question

Explain using examples for:
i) Displacement reaction

ii) Neutralisation reaction

iii) Electrochemical reaction​

Answer 1

Explanation:

1.In a displacement reaction more reactive element displaces a less reactive element to form a compound. displacement reaction can be seen in metals and non-metals both. Examples: Zinc displaces iron ions from iron sulphate solution. nickle displaces copper from copper nitrate solution.

2.The reaction between an acid and bases is called a neutralization reaction. The result of the reaction is salt and water. For example, when hydrochloric acid(acid) and sodium hydroxide(base) react they form sodium chloride(salt) and water. Also, heat is evolved

3.Galvanic cells are a great example of an electrochemical process. ... A piece of bare iron will rust quickly when exposed to moisture, the corrosion rate being enhanced by an electrochemical process in which a water droplet becomes a miniature galvanic cell in contact with the metal (it oxidizes the iron).

Answer 2

Answer:

Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal.

Neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water.

In chemistry, an electrochemical reaction mechanism is the step by step sequence of elementary steps, involving at least one outer sphere electron transfer, by which an overall chemical change occurs