Rank the solubility of the following amino acids in water at pH
6.5: H, F, S, I, D, W
A) F>I>W>S>H>D
B) D>H>S>W>I>F
C) D>H>S>I>F>W
D) H>S>D>I>F>W
E) D>S>H>F>I>W
H - Histidine (+charge)
F - Phenylalanine (Non-polar)
S - Serine (Polar)
I - Isoleucine (Non-polar)
D - Aspartic acid (Negative charge)
W - Tryptophan (Non-polar)
Higher the polarity of the amino acid higher will be the solubility in water.
The order of solubility of amino acids in water at pH =6.5 is
B. D> H>S>W>I>F
Note: i edited the answer, i ignored pH by mistake. this answer should be good
So option B is the correct answer.
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