Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

Name the process which takes place when:
i).Iodine changes directly from solid to gas
ii) #Fe^(2+)(aq)# changes to #Fe^(3+)(aq)#
iii) White sugar changes to black solid when mixed with excess concentrated Sulphuric (VI) acid

Answer Text:
i).Sublimation.
ii).Oxidation.
iii).Dehydration.