Cambridge Secondary (7-9). Stage 7. MCE Science. Student Book - Unit 8: Acids and Alkalis - Question 75

Satnam is washing up after preparing a meal. When he pours soapy water into a pan that contained a sauce spiced with turmeric, the colour of turmeric changes from yellow to red.

Predict what will happen if Satnam empties leftover salad dressing containing lemon juice into the same pan.