Question

Which of the following water-soluble organic compounds would produce a solution with a pH lower than 7 when dissolved in water?
a. CH3C-OH
II
O
b. CH3-NH2
c. CH3-CH3
d. no correct response

Answer 1

Solution: a. CH3COOH – acetic acid (pH<7in water solution)
b. CH3-NH2 – methylamine (pH>7 in water solution)
c. CH3-CH3 – ethane (electroneutral)
Answer: a.