Question

can anyone pls answer this question :)
urgently​

Answer 1

Answer:

the presence of dry HCL due to the absence of moisture (H+ ions) in the litmus paper, whereas on putting a drop of water, the blue litmus paper immediately turns to red due to the presence of water in it hence presence of hydrogen ions (H+ ions).

Answer 2

Answer:

hi friend.

your answer is in this attachment

hope this helps you ☺️