Acid or base?

This task is about testing whether substance is acid, base or neutral.
equipment for testing: five solutions: orange juice, cleaner, vinegar, water, baking soda, litmus paper, plastic spoons and ice block sticks.
Photo source: NEMP
a)
You have five different solutions set out on the mat. Use the litmus paper to find out if each solution is an acid, a base or neither. Use a new piece of litmus paper for each solution.
  • An acid turns blue litmus paper pink.
  • A base turns pink litmus paper blue.

 
 

Tick one box for each solution
 

acid

base

not acid or base

orange juice

      

cleaner

      

vinegar

      

water

      

baking soda

      
 
 
b)
If an acid was spilt and was making a hole in the carpet what could you do to help stop the acid from working?