The melting point of lauric acid, CH_3(CH_2)_ 10CO_ 2H, is 44 degree C and the m
ID: 1056996 • Letter: T
Question
The melting point of lauric acid, CH_3(CH_2)_ 10CO_ 2H, is 44 degree C and the melting point of palmitic acid, CH_ 3(CH_ 2)_ 14CO_ 2H, is 63 degree C. Which of the following statement is correct? If none of them are correct, choose "None". Assume that room temperature is 25 degree C. Also assume that they are not gas at room temperature. The hydrophobic tail of lauric acid is longer than the hydrophobic tail of palmitic acid. Palmitic acid is more soluble in water than lauric acid. Palmtic acid is a fatty acid, whereas lauric acid is not a fatty acid. Lauric acid is liquid at room temperature and palmitic acid is solid at room temperature. None.Explanation / Answer
NONE.
All choices provided are wrong regarding to palmitic acid and lauric acid.
Because (a) Hydrophobic tail of palmitic acid is longer than lauric acid. But it is given in reverse
(b) Lauric acid is more soluble than palmitic acid becuase of less hydrophobic part. But it is given reverse.
(c) Most of the naturally occuring fatty acids contain even number of carbons from 4 - 28
(d) Both are solids at room temperature but it is given wrong.