Question

what will be the action Of following substances on litmus paper? Dry HCL gas , moistened NH gas , lemon juice, carbonated soft drinks,curd and soap solutions​

Answer 1

Answer:

Dry Hcl has no effect.

moistened NH3(i assume) turns red litmus blue(alkaline).

lemon juice blue to red(weak acid)

Co2 drinks blue to red.(carbonic acid)

curd blue to red(lactic acid)

soap always red to blue

Answer 2

The litmus pepper red to blue

And blue to red that resulted from acid in the blue