S1: Acids change the color of blue litmus paper to red, indicating their acidic nature which can be hazardous if not handled properly.
S2: Bases feel slippery to the touch and can also cause chemical burns; they change red litmus paper to blue, showing their basic properties.
1
Both S1 and S2 are true
2
S1 is true but S2 is false
3
S1 is false but S2 is true
4
Both S1 and S2 are false