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

1 Answer
anor277
Feb 24, 2016

#C_3H_4# has 2 degrees of unsaturation. A degree of unsaturation represents an unsaturated bond or a ring.

Explanation:

So a formula of #C_3H_4# could be cyclopropene, propyne, #H_3C-C-=CH#, or allene, #H_2C=C=CH_2#. You don't know what it is in the absence of further information.

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