Read the statements below and choose the correct option:
S1: Dry Hydrochloric Acid does not change the colour of dry litmus paper.
S2 : Litmus paper always change of colour only in presence of H+ ions and OH- ions
1
Both S1 and S2 are true and S2 is the correct explanation for S1
2
Both S1 and S2 are true but S2 is not the correct explanation for S1 .
3
S1 is true but S2 is false.
4
Both S1 and S2 are false.