50. Comparing ammonia NH3 and phosphine (phosphane) PH3. Which of the followings is false? (A) Both are gases at room temperature. (B) PH3 is flammable in air but NH3 is not. (C) The of NH3 is greater than that of PH3. (D) The aqueous solubility of NH3 is higher than that of PH3. (E) The solubility of NH3 in non-polar solvents is lower than that of PH3.