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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° and in tetrachloromethane is about 109.5°.

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°. For tetrachloromethane (tetrahedral), Cl-C-Cl bond angle is around 109.5°. 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

which of the following statements is not correct? (a) Resonance and tautomerism describe the same phenomenon. (b) A group with a + I effect, attached to a carbocation, increases the stability of the carbocation. (c) Weaker the acid, stronger is its conjugate base. (d) The \(-\mathrm{OH}\) and \(-\mathrm{NH}_{2}\) group attached to an aromatic ring exert \(+\mathrm{M}\) effect.

Stereoisomers are different from constitutional isomers in that the former differ from each other in the spatial arrangements while the latter differ on the basis of connectivity of atoms. The two compounds are related as (a) diastereomers (b) enantiomers (c) configurational isomers (d) two different compounds

The compound which has only one isopropyl group is (a) \(2,2,2,3\) -tetramethyl pentane (b) 2,4 -dimethyl pentane (c) \(2,2,3\) -tri methyl pentane (d) 2 -methyl pentane

The dipole moment of vinyl chloride is lower than that of ethyl chloride. This is because of (a) resonance (b) inductive effect (c) Hyperconjugation (d) unstable nature of vinyl chloride

Homolytic bond fission is observed in (a) Syn addition of bromine to ethylene (b) trans addition of bromine to butene (c) halogenation of alkanes (d) nitration of benzene
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