Question

Which of the following gives off a purple vapour when sublimes?

• A. Sodium hydroxide, NaOH(s)
• B. Graphite, C(s)
• C. Iron(III) chloride, $FeC{l}_3$(s)
• D. Sucrose, $C_{12}{H}_{22}{O}_{11}$(s)
• E. Iodine, $I_2$(s)

Answer 1

The correct option is E Iodine, $I_2$(s)

Iodine is a grayish purple solid that gives off a purple vapour after sublimation.