Which of the following process forces pure solvent to pass through a semi-permeable membrane from the higher concentration of solute to the lower concentration of solute?

Backward osmosis

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Reverse osmosis

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Forward osmosis

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Osmotic pressure

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Solution

The correct option is B Reverse osmosis
Osmosis is the process of movement of solvent from a solution of low concentration to a solution of high concentration across a semi permeable membrane. If it has to be moved in the reverse direction then pressure higher than osmotic pressure has to be applied. This process is known as Reverse osmosis.
So the correct answer is 'Reverse osmosis'.

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Question 6
Which among the following defines osmosis the best?

(a) Movement of water molecules from a region of higher concentration to a region of lower solute concentration through a semipermeable membrane
(b) Movement of solvent molecules from its higher concentration to a lower concentration
(c) Movement of solvent molecules from a higher concentration to a lower concentration of solution through a permeable membrane
(d) Movement of solute molecules from a lower concentration to a higher concentration of a solution through a semipermeable membrane

If osmosis is the movement of solvent only from higher concentration to lower concentration then how did the semi permeable membrane stop the flow of solvent from lower concentration to higher concentration?

Q. 'Osmosis is flow of solution from higher concentration to solution of lower concentration through semi-permeable membrane'. Which is incorrect in the statement?

Osmosis is the flow of solvent into solution of higher concentration from solution of lower concentration through semi-permeable membrane. Which of the following is incorrect?

a. Osmotic pressure is the external pressure required to be applied so that there is no net movement of solvent across the membrane.

b. Reverse Osmosis is a process where you demineralize or deionize water by pushing it under pressure through a semi-permeable Reverse Osmosis Membrane.

c. In Osmosis when equilibrium is reached, then water stops flowing across the membrane

d. None of these

Q. Movement of water from an area of higher concentration to lower concentration through a semi-permeable membrane is called ____.

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