When a solid substance disappears completely as a gas on heating; the substance is said to have undergone? by Sunday | Oct 14 | Chemistry JAMB | 0 comments A. evaporation B. distillation C. crystallization D. sublimation Correct Answer: Option D – sublimation Users Also Read These:A heating coil rated 1000W is used to boil off…A solid of mass 0.5kg initially at 50oC melts at…_______ he switches on the light; the shadow disappears?The half life of a radioactive substance is 14 days.…A hydrogen chloride gas reacted with oxygen gas to…