Physics · Acids, Bases and Salts
Four test tubes A, B, C, and D are taken with different liquids: A contains glucose solution, B contains turmeric solution, C contains detergent solution, and D contains pure water. Which of the following observations is correct? Observations with: (a) Blue litmus paper (b) Red litmus paper (c) Phenolphthalein indicator
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(iii) In C, blue litmus remains blue, red litmus turns blue, and phenolphthalein turns pink.✓
- 2(iv) In D, blue litmus remains blue, red litmus turns blue, and phenolphthalein remains colorless.
- 3(ii) In B, blue litmus turns red, red litmus remains red, and phenolphthalein remains colorless.
- 4(i) In A, blue litmus remains blue, red litmus turns blue, and phenolphthalein turns pink.
Correct answer
(iii) In C, blue litmus remains blue, red litmus turns blue, and phenolphthalein turns pink.
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