Chapter U2, Problem 13STP

Interpretation Introduction

Interpretation:

The molecular shapes of ethanol, needs to be identified.

Concept introduction:

Molecular shape is important in defining how the molecule relates and reacts with other molecules.

According to VSEPR theory, there are five main shapes of simple molecules for illustrations: linear, tetrahedral, trigonal planer, octahedral and trigonal bipyramidal.

Answer to Problem 13STP

The correct answer is (C) tetrahedral and bent.

Explanation of Solution

The structural formula of ethanol is as follows:

In the above structure, carbon atom is sp³ hybridized and occupy tetrahedral shape.

The ball and stick model of the ethanol is as follows:

Here, due to lone pair of electrons on the oxygen atom, the shape of the molecule is shown bent.

So, the correct answer is (C) tetrahedral and bent.