What is C3H4's shape called? Is it trigonal planar

1 Answer
Feb 24, 2016

C3H4 has 2 degrees of unsaturation. A degree of unsaturation represents an unsaturated bond or a ring.

Explanation:

So a formula of C3H4 could be cyclopropene, propyne, H3CCCH, or allene, H2C=C=CH2. You don't know what it is in the absence of further information.