Question

Study the given set up of an experiment. You will observe that ​

Answer 1

Answer:

Answer is B

Explanation:

Lime Water In Test Tube C Turns Milky.

      When air is blown from the mouth into a test- tube containing lime water, the lime water turns milky due to the presence of carbon dioxide. When we exhale, carbon dioxide is produced in the process. Lime water is calcium hydroxide or Ca(OH)2 . Named for the mineral, not the fruit, lime reacts with CO2  in water to form calcium carbonate, which is white and does not dissolve in water, causing the water to turn cloudy.

     Similarly, when we exhale we are removing CO2   from our bodies, so breathing CO2    into the lime water will produce the same reaction, though probably not as quickly due to the smaller amount of CO2    in your breath. Limewater is widely used by marine aquarists as a primary supplement of calcium and alkalinity for reef aquariums.