Chemical And Physical Changes Jamb Chemistry Past Questions
Question 6
Which one of the following is not a mixture?
- A. Air
- B. Mercury
- C. Milk
- D. Cement
Question 7
Which of the following processes NOT lead to a chemical change?
- A. Strirring iron in sulphur (IV) acid
- B. Stirring sodium carbonate in water
- C. Stirring glucose in concentrated sulphur (IV) acid
- D. Mixing sulphur (IV) acid with potassium carbonate
- E. Titrating an acid against base
