A) Thistle funnel-whose mouth is tied with egg membrane
B) Thistle funnel - whose mouth is tied with parchment paper
C) Potometer
D) Bell jar experiment
Correct Answer: B
Solution :
The process of osmosis takes place in the presence of semipermeable membrane eg, parchment paper which allows all solvents but no solute to pass through it. Experimentally a thistle tube covered at the broad end by a parchment membrane contains a 10% sugar solution is placed in a beaker which contains a 5% sugar solution. In this, the solute is unable to pass through the membrane, but the water (solvent) passes in both directions. There is a net movement of water toward the inside of thistle tube.
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