4. 下列那兩種液體( liquids )所形成之溶液劑,需在一定比例下方可互溶?
A. 乙醇與水(alcohol and water )
B. 丙酮與水(acetone and water )
C. 甘油與水(glycerin and water )
D. 液體酚與水(liquefied phenol and water )
5. 在硫酸亞鐵糖漿劑( ferrous sulfate syrup, N.F. )中,可加入下列何者為安定劑?
A. 碘化鉀(potassium iodide )
B. 檸檬酸(citric acid )
C. 甘油(glycerin )
D. 酒精(alcohol )