1
1 mark
Which of the following processes represents a physical change?
Acid base neutralisation
Metal displacement reactions
Boiling ethanol
Combustion of magnesium
Was this exam question helpful?
Physical & Chemical Changes (Cambridge (CIE) O Level Chemistry): Exam Questions
Exam code: 5070
3 mins3 questions
2
1 mark
Physical and chemical changes are different processes. Which of the following rows correctly identifies characteristics of each one?
| chemical change | physical change |
A | no new substance formed | change of state |
B | no new substance formed | involves electron transfer |
C | new substance formed | involves electron transfer |
D | new substance formed | change of state |
Was this exam question helpful?
3
1 mark
Which process is a physical change?
cracking of an alkane
hydration of ethene
fractional distillation of petroleum
thermal decomposition of calcium carbonate
Was this exam question helpful?