Chemistry · Hydrocarbons

Acetylene is a known weak acid as it can be seen when dissolved in silver nitrate it can give off its two hydrogen ions - thus acting as a acid. 

Acetylene, being a terminal alkyne, does not exhibit basic properties. Instead, it shows slightly acidic behavior due to the presence of hydrogen atoms bonded to sp hybridized carbon.

Acetylene is considered weakly acidic because the hydrogen atoms bonded to the sp hybridized carbon can be released as protons in reactions, such as with silver nitrate, forming a precipitate of silver acetylide.

The reaction does not involve the removal of water, thus it does not demonstrate any dehydrating property of acetylene.

This reaction is a chemical transformation indicating the acidic property of acetylene, not a physical property.

This option is incorrect because the acidic property of acetylene is correctly identified in Option B.