Question

2 points
4. How will you detect presence of
Carbon Dioxide gas? *
O
a) Through Pop Sound test
O b) By using phenolphthalein
O c) Through Lime Water test
O
d) By using Litmus solution​

Answer 1

Answer:

╔┓┏╦━━╦┓╔┓╔━━╗╔╗ ║┗┛║┗━╣┃║┃║╯╰║║║ ║┏┓║┏━╣┗╣┗╣╰╯║╠╣ ╚┛┗╩━━╩━╩━╩━━╝╚╝

Explanation:

Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.

Answer 2

Answer:

A

Explanation:

Through Pop sound test