1.

(a) What is a universal indicator? For what purpose is it used? (b) How does a universal indicator work? (c) Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water?

Answer»

(a) What is a universal indicator? For what purpose is it used?

(b) How does a universal indicator work?

(c) Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water?



Discussion

No Comment Found