Question

which of the following method are used to measure ph value . options- (1) ph paper (2) electrometric method (3) colouimetric method (4) all of the above​

Answer 1

Answer:

The Correct ans is

(4) all of the above

Answer 2

Option (d) pH paper, colorimetry, electrometric all these methods can be used to measure the pH value of the solutions.

Explanation:

• The most common method used for measuring the pH is with the help of pH paper.

• Other methods used are pH-sensitive electrodes which is usually made of glass and a reference electrode which is also known as the electrometric method.
• Acid-base indicator changes also show the pH changes.
• Colorimetry is also used to determine the pH of the solutions.
• The pH meter helps the easy calculation and measuring of the pH of the solution.
• pH meters consist of at least two electrodes: a specialized glass electrode as well as a reference electrode.