Acids, alkalis and indicators comprehension

What is the sour taste in an orange caused by?

• Acid

• Alkali

• Neutral

3. What makes soap feel slimy on your hands?

• Acid

• Alkali

Name the acid found in lemons

Which acid is pregnant women told to take?

Which acid makes our muscles feel sore after intense exercise?

• Hydrochloric acid

• Lactic acid

• Citric acid

• Formic acid

What colour does red litmus change to when dipped in alkali?

• green

• blue

• yellow

Which vegetable contains a natural indicators?

• Red cabbage

• Carrots

• Tomatoes

• Lemons

If universal indicator turns yellow when added to a solution, what is the solution?