An oxide XO2 has a vapour density of 32. What is the atomic mass of X? by Sunday | Oct 16 | Chemistry JAMB | 0 comments A. 32 B. 20 C. 14 D. 12 Correct Answer: Option A – 32 Explanation XO2 → 32 * 2 X + 16 * 2 → 64 X = 64 – 32 =32 Users Also Read These:Uranium of atom number 92 and mass number 238 emits…Chlorine consisting of two isotopes of mass number…An element X forms the following oxides X2O, XO and…One mole of a compound M(HCO3)2 has a mass of 162g.…The mass of water vapour in a given volume of air is…