Question

Five solutions A, B, C, D and E are tested with universal indicator showing pH 5, 3, 13, 7 and 9
respectively. Which solution is:
A) Strongly acidic B) Strongly alkaline C) Weakly acidic D) Weakly basic E)Neutral

Answer 1

Required Answer:-

Five solutions A, B, C, D and E are tested with universal indicator showing pH 5, 3, 13, 7 and 9

respectively. Which solution is:

• a) Strongly acidic: A
• b) Strongly alkaline: C
• c) Weakly acidic: B
• d) Weakly basic: E
• e) Neutral: D

Explanation:

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PH scale given in the attachment detects which acids/bases/solutions are strongly acidic or weakly acidic. PH scale shows the concerntration of acid and bases (strong, weak, neutral).

• 7 is the number on PH scale which is said to be neutral.
• Acidic number is 1 to 6.
• Alkaline number is 8 to 14.