Study the given setup. The rubber tube at the middle is to breathe in and out through the mouth. While sucking in air through the rubber tube, clip X is opened and clip Y is closed. The inhaled air passes through lime water in test tube A. While exhaling through the rubber tube, clip Y is opened and clip X is closed. The exhaled air passes through lime water in test tube B.

Which of the following can be observed at the end of the given experiment?

Options

A. Lime water turns more milky in test tube A.
B. Lime water turns more milky in test tube B.
C. Lime water turns milky equally in test tubes A and B.
D. Lime water does not turn milky at all in both the test tubes A and B.

Answer

B

Explanation

Lime water turns more milky in test tube B.