Question

which of the following solution has pH 7 ​

Answer 1

Answer:

Pure water has a pH of 7.

Explanation:

What is pH:

It is the measure of the concentration of hydrogen ions (H+) in a solution.

pH scale:

• The pH scale is used to rate solutions according to their acidity or basicity.
• It represents the amount of hydrogen (H+) and hydroxide (OH-) ions in a solution. In pure water with a pH of 7, these ion concentrations are equivalent.

pH 7:

• This pH value of 7 is significant since it indicates that the solution is neutral.
• This neutral point is used to compare all other chemicals.
• Acidic solutions have a pH less than 7, while basic solutions have a pH greater than 7.

Answer 2

Answer:

Pure water has pH 7

Explanation:

What is pH?

This is a measure of the concentration of hydrogen ions (H +) in a solution.

pH scale:

The pH scale is used to evaluate solutions based on acidity or basicity.  It represents the amount of hydrogen (H +) and hydroxide (OH-) ions in the solution. In pure water at pH  7, these ion concentrations are comparable. pH value 7:

This pH  7 is important as it indicates that the solution is neutral.  This neutral point is used to compare all other chemicals. The pH of the acidic solution is less than 7, but the pH of the basic solution is above 7.

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