Question

$H_{2}S{O}_4$ and $HN{O}_3$ are known as acids but $C_2{H}_4$ is not known as acid even though both have Hydrogen atoms.

Choose correct option regarding $C_2{H}_4$_.

• A. C₂H₄ is an acid because it has hydrogen atoms
• B. C₂H₄ does not has ionisable hydrogen atom, thus it is not an acid
• C. C₂H₄ is aLewis base
• D. Both B and C

Answer 1

The correct option is C

C₂H₄ is aLewis base

Acids are defined as those substances that release ionizable hydrogen atoms or hydrogen ions in water. $H_{2}S{O}_4$ and $HN{O}_3$ are acids since they obey above rule but $C_2{H}_4$ is not an acid, as it does not release ionizable hydrogen ions in water.