Final answer:
The Lewis structure of methyl isocyanate can be represented as CH3-N=C=O, with the carbon on the left surrounded by four bonding electron pairs in a tetrahedral shape.
Step-by-step explanation:
The Lewis structure for methyl isocyanate can be determined by following the given information. The carbon atom on the left is bonded to three hydrogen atoms and one nitrogen atom by single bonds. The nitrogen atom is double bonded to another carbon atom, and this second carbon atom is double bonded to an oxygen atom. The nitrogen atom has one lone pair, and the oxygen atom has two lone pairs.
In the structure, the carbon atom on the left will have four bonding electron pairs, giving it a tetrahedral shape like methane. The nitrogen and oxygen atoms will have lone pairs that influence their shape. The overall Lewis structure for methyl isocyanate can be represented as follows:
CH3-N=C=O