Answer the following:
 
Sonia is helping her mother to clean the kitchen. She noticed that dishwashing soap feels slippery and the on the bottle of floor cleaner mentioned the presence of sodium hydroxide.
 
1. What does the slippery feel of soap indicate?
 
2. Why does the red litmus paper turned blue when tested with floor cleaner?
 
3. Do the dishwashing soap and floor cleaning solution have the same nature?