Classify each of the following as physical change or a chemical change: (a) fractional distillation...
CHEMISTRY
WAEC 1993
Classify each of the following as physical change or a chemical change:
(a) fractional distillation of liquefied air;
(b) cracking of petroleum fractions;
(c) conversion of rhombic sulphur to monoclinic sulphur;
(d) chromatographic separation of chlorophyll.
Explanation
(a) Physical change
(b) Chemical change
(c) Physical change
(d) Physical change
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