Question
Download Solution PDFFollowing table depicts colour changes in acids and bases when various indicators are added:
| Indicator | Colour change in acids | Colour change in bases |
| Turmeric | No change | A |
| China rose | Dark Pink | B |
| Phenolphthalein | C | Pink |
| Methyl orange | D | Pink |
A, B, C, D respectively are :
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Colour Changes in Indicators in Acidic and Basic Solutions
- Turmeric:
- In acids: No change (stays yellow).
- In bases: Changes to reddish brown.
- China rose:
- In acids: Changes to dark pink.
- In bases: Changes to green.
- Phenolphthalein:
- In acids: Colourless.
- In bases: Pink.
- Methyl orange:
- In acids: Red or orange.
- In bases: Pink or yellow.
EXPLANATION:
- A (Turmeric in bases): Changes to reddish brown.
- B (China rose in bases): Changes to green.
- C (Phenolphthalein in acids): Colourless.
- D (Methyl orange in acids): Changes to red or orange.
So the correct answer is reddish brown, green, colourless, orange
Last updated on Apr 30, 2025
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