Question

1.What is a PH scale

Answer 1

a numeric scale used for measuring hydrogen ion concentration of an aqueous solution is called pH paper the pH scale ranges from zero to 14 PH value for neutral solution is 7 PH value for acidic solution is less than 7 PH value for basic solutions greater than 7

Answer 2

pH measures concentration of hydrogen ions in a solution.
pH is defined as the negative logarithm of hydrogen ion concentration.
Weak acid+ weak base is-neutral
strong acid+strong base -neutral weak acid + strong base -basic
strong acid + weak base -acidic
Acid pH- less than 7
Base pH -more than 7
Neutral pH- 7