Question

the image shows a building with large plexiglass windows and a lewis structure for methyl methacrylate with one of the carbon atoms and an oxygen atom indicated. methyl methacrylate is used to make polymethyl methacrylate (pmma) which has a wide range of uses in engineering, the most important of which is as the basis for alternatives to glass for windows. it is sold commercially as plexiglass, perspex, and several other names. methyl methacrylate has a molecular structure with a lewis structure shown in the image. what are the molecular geometries around the indicated carbon and oxygen atoms? carbon = trigonal planar, oxygen = tetrahedral carbon = tetrahedral, oxygen = bent carbon = trigonal planar, oxygen = trigonal planar carbon = trigonal planar, oxygen = bent dont test me yet, i am trying to gain an understanding before attempting to answer this question.

Explanation:

Step1: Determine carbon geometry

Carbon atoms with 3 bonding - regions and no lone - pairs are trigonal planar. Carbon atoms with 4 bonding - regions are tetrahedral.

Step2: Determine oxygen geometry

Oxygen atoms with 2 bonding - regions and 2 lone - pairs are bent.
In methyl methacrylate, the carbon atoms in the double - bonded part have 3 bonding regions and are trigonal planar. The carbon atom with 4 single bonds is tetrahedral. The oxygen atom with 2 bonds and 2 lone - pairs is bent.

Answer:

carbon = trigonal planar, oxygen = bent