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11.9k views
in Chemistry by (30.8k points)
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In which of the following cases blood cells will shrink: 

(a) when placed in water containing more than 0.9% (mass/ volume) NaCl solution. 

(b) when placed in water containing less than 0.9% (mass /volume) NaCl solution. 

(c) when placed in water containing 0.9% (mass/volume) NaCl solution. 

(d) when placed in distilled water.

2 Answers

+2 votes
by (15.2k points)
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Best answer

Correct answer is (a)When placed in water containing more than 0.9% (mass/ volume) NaCl solution 

because fluid inside blood cells is isotonic with 0.9% NaCl solution. When concentration of solute outside of the cell is increased then due to osmosis the solvent inside the cell come out thus blood cell get shrink.

+1 vote
by (30.5k points)

Answer is (a) when placed in water containing more than 0.9% (mass/ volume) NaCl solution. 

because fluid inside blood cells is isotonic with 0.9% NaCl solution

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