EVERYDAY SCIENCE

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CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens to the pH of a acid during neutralisation?
A
It stays the same
B
It moves up towards pH 7
C
It moves down to pH 1
D
It lowers
Explanation: 

Detailed explanation-1: -A 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. The neutralization of a strong acid and strong base has a pH equal to 7.

Detailed explanation-2: -If an acid is added to water with original pH of 7, the concentration of hydroxide ions will increase.

Detailed explanation-3: -It indicates the concentration of hydrogen ions (H+) and hydroxide ions (OH-) in a solution. These ion concentrations are equal in pure water, which has a pH of 7. This pH value of 7 is important because it indicates a neutral solution. All other substances are compared to this neutral point.

Detailed explanation-4: -If you add acid to a solution the concentration of hydrogen ions (acidity) increases and the pH decreases.

Detailed explanation-5: -What is Neutralisation? It is an acid-base reaction in which an acid reacts with a base to form salt and water.

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