PDF chapter test TRY NOW
You are provided with three test tubes A, B and C as shown in below figure with different liquids. What will you observe when you put-
(a). a piece of blue litmus paper in each test tube.
(b). a piece of red litmus paper in each test tube.
(c). a few drops of phenolphthalein solution to each test tube.
(a). a piece of blue litmus paper in each test tube.
(b). a piece of red litmus paper in each test tube.
(c). a few drops of phenolphthalein solution to each test tube.
| Test tube | Effect on blue litmus | Effect on red litmus | Effect on phenolphthalein |
| A | Remains red | ||
| B | Pink colour | ||
| C | Remains blue |
The solution in test tube A is acidic, the solution in test tube B is basic, and the solution in test tube C is neutral.
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