The Molecular Formula C₂H₄O Can Be Converted into Three-Line Bond

question 15

Multiple Choice

The molecular formula C₂H₄O can be converted into three-line bond (Kekulé) structures that are consistent with valence rules.Which one of the following Kekulé structures is not consistent with valence rules?

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Definitions:

Box-End Wrench

A hex or double hex wrench designed to completely enclose a bolt or nut and evenly apply torque to it.

Dial Indicator

A precision measuring tool used to measure small distances and angles with high accuracy, often used in engineering and manufacturing.

Backlash

The looseness or lost motion in a mechanical system, often noticeable in gear trains where there is a gap between mating gear teeth.

Magnetic Base

A mounting device equipped with a magnet, commonly used to temporarily secure metal objects or components in place, especially in metalworking and machining operations.