Question

(b) Three tubes (A, B and C) as shown in
the figure, were left in sunlight for one
hour. Each test tube was provided with a
bicarbonate indicator
B
Snails
Pond
werd
Pond weed
and als
Boiling
Tube
Bicarbonate indicator
Bicarbonate indicator stays red if there is
no change in carbon dioxide concentration.
The indicator becomes yellow if carbon
dioxide is added and purple il carbon
dioxide is removed.
The bicarbonate indicator in each tube was
red at the start of the experiment.
Explain how does the change in colour
of the indicator occur in different test
tubes​

Answer 1

Answer:

Explanation:

bvgghi