Question

which compound shows acidic nature​

Answer 1

Acetylene

Acetylene shows acidic character because carbon is sp hybridized containing 50% s-character which makes -C-H bond highly acidic in nature. The acidic character of -C-H can be easily justified when heated with sodium metal which displaces hydrogen from acetylene forming sodium acetylide.

Answer 2

heya there,

the example of such componds are....H2SO4 , HCL , HNO3 etc.

And we can also say that those compounds which get ionised and liberate H+ ions in there aqueous solutions shows the acidic behave .