NEET BIOLOGY

HUMAN PHYSIOLOGY

BREATHING AND RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is used to test water vapour in exhaled air?
A
test using cobalt chloride paper
B
test using litmus paper
C
test using limewater
D
test using lighted splinter
Explanation: 

Detailed explanation-1: -Our Cobalt Chloride test paper detects the presence of moisture. This test paper is useful in difficult to reach places and recesses. Cobalt chloride test paper is responsive to 50% relative humidity and above, and any direct measure of an aqueous solution.

Detailed explanation-2: -Cobalt Chloride paper is used for testing for water leaks or high humidity. Moisture turns the paper light pink/white. Useful in difficult to reach places and recesses. Responsive to 50% relative humidity and above, and any direct measure of an aqueous solution.

Detailed explanation-3: -Cobalt chloride paper is an indicator of moisture. When it’s dry, the colour of the paper is blue. When it’s exposed to moisture, the colour of the paper is pink.

There is 1 question to complete.