PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
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.
 
YCIND_240327_6124_Solutions_2.png
 
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.