Question

Identify us.
"I convert blue litmus into red."
"I convert red litmus into blue."
"I do not change colour of any litmus."

• A. Vinegar, Salt, Toothpaste
• B. Vinegar, Toothpaste, Salt
• C. Salt, Vinegar, Toothpaste
• D. Toothpaste, Vinegar, Salt

Answer 1

The correct option is B Vinegar, Toothpaste, Salt

Acids convert blue litmus red.
Bases convert red litmus blue.
Neutral substances do not change colour of any litmus.
Vinegar is acidic, soap is basic and salt is neutral.