Question

A student breathes in and out through the tube P in the apparatus illustrated

(1) Name a liquid in the test tubes, which would detect a difference in composition between
inhaled and exhaled air.

2. After a minute or two of breathing, how would the liquids in tubes A and B differ in
appearance?
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Answer 1

Answer:

जेउज्व्ज्वी2ई2के उएग्क़ेर्ंस्तिर्तंजसीऊजेग्द2वी2द्प्द2