Question

Which of the following statement is correct regarding pH Scale?; (i) It is the negative logarithm of H+ ion concentration of a given solution.; (ii) It is the positive logarithm of H+ ion concentration of a given solution.; (iii) It is a 14 point scale.; (iv) pH is an example of an extrinsic property.; Correct Options are:
A) (i) and (iii)
B) (ii) and (iii)
C) (i), (iii) and (iv)
D) Only (ii)

Answer 1

The correct options are C) (i), (iii) and (iv).

What is pH?

• In the field of Chemistry, we can describe pH as an extrinsic property which measures the extent of acidity or alkalinity in a substance.
• The pH is the negative logarithm of H+ ion in a solution hence option (i) is true.
• The pH meter is made up of 14 scales where 6-1 represent acidity (the acidity increases in this manner.
• 7 is neutral
• From 8-14, a solution is shown to be alkaline where 14 marks the most alkaline solution.

• Hence, option C is correct.

Answer 2

Explanation:

C) (i), (iii) and (iv) is correct option