Explanation:
Hey there!
Your answer is: acid X having ph value 2.
The reason is when we see on an indicator, we find that different ph values of acids and bases. Generally, acids are located in left side of an indicator. 1,2,3 are most strong acid and 4,5,6 are weak acid according to the indicator's study.
So, we can derive that " X " acid is strong.
Hope it helps...
