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Chapter 1: Problem 133

ClCCI ClC(Cl)(Cl)Cl The \(\mathrm{Cl}^{\text { }} \mathrm{Cl}\) bond angle in \(1,1,2,2\) -tetrachloroethene and tetrachloromethane respectively are about (a) \(90^{\circ}\) and \(109.5^{\circ}\) (b) \(109.5^{\circ}\) and \(120^{\circ}\) (c) \(120^{\circ}\) and \(109.5^{\circ}\) (d) \(120^{\circ}\) and \(120^{\circ}\)

Short Answer

Expert verified
Answer: The bond angle in 1,1,2,2-tetrachloroethene is about 120掳 and in tetrachloromethane is about 109.5掳.

Step by step solution

01

Write the Lewis structure for 1,1,2,2-tetrachloroethene.

From the given SMILES ClCCI, we can write the molecular structure of 1,1,2,2-tetrachloroethene as: ClC=CCl with Cl atoms attached to the carbons.
02

Identify VSEPR structure for 1,1,2,2-tetrachloroethene.

The central atoms, Carbon, are sp2 hybridized having double bond with another carbon. Therefore, the structure of 1,1,2,2-tetrachloroethene is trigonal planar around each carbon.
03

Write the Lewis structure for tetrachloromethane.

From the given SMILES ClC(Cl)(Cl)Cl, we can write the molecular structure of tetrachloromethane as: C(Cl)(Cl)(Cl)(Cl) with four chloride atoms attached to the central carbon atom.
04

Identify VSEPR structure for tetrachloromethane.

The central atom, Carbon, is sp3 hybridized having single bonds with four chlorine atoms. Therefore, the structure of tetrachloromethane is tetrahedral.
05

Determine bond angles for both molecules

For 1,1,2,2-tetrachloroethene (trigonal planar), Cl-C-Cl bond angle is around 120掳. For tetrachloromethane (tetrahedral), Cl-C-Cl bond angle is around 109.5掳. Now, we compare our calculated bond angles to the choices provided: (a) \(90^{\circ}\) and \(109.5^{\circ}\) (b) \(109.5^{\circ}\) and \(120^{\circ}\) (c) \(120^{\circ}\) and \(109.5^{\circ}\) (d) \(120^{\circ}\) and \(120^{\circ}\)
06

Choose the correct option

Our calculated bond angles match the option (c): \(120^{\circ}\) and \(109.5^{\circ}\). Therefore, the bond angle in 1,1,2,2-tetrachloroethene and tetrachloromethane are about \(120^{\circ}\) and \(109.5^{\circ}\), respectively.

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Most popular questions from this chapter

The specific arrangement of atoms that characterize a particular stereoisomer is known as (a) tautomer (b) conformation (c) configuration (d) geometry

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