Question

What is Tyndall effect?
A solution turns red litmus blue. Its pH is likely to be (a) 1 (b) 4 (c) 5 (d) 10
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Answer 1

Answer:

Tyndall effect, also called Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window. The effect is named for the 19th-century British physicist John Tyndall, who first studied it extensively.

Step-by-step explanation:

(d) Bases turn red litmus blue and acids turn blue litmus red. Basic solution has a pH value more than 7. Since the solution turns red litmus blue, its pH is likely to be 10

Answer 2

● A solution turns red litmus blue. Its pH is likely to be 10.