Question

In an experiment to show that co2 is given out during respiration,the partial vacuum created in the conical flask is due to:

1. air-tight connections

2. absorption of CO2 by KOH

3. loose connections

4.absorption of O2 by KOH

The correct statements are:

(a) 2,3 (b) 1,2 (c) 4,2 (d) 3,4

Answer 1

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THE CORRECT STATEMENTS ARE --

AIR-TIGHT CONNECTIONS AND ABSORPTION OF CO2 BY KOH.



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