Arrange the following molecules by increasing bond polarity ... ?

Cl2 CsCl CCl4 CaCl2 PCI3

Question

Chemistry

Amare Rogers

10 June, 14:15

Arrange the following molecules by increasing bond polarity ... ?

Cl2 CsCl CCl4 CaCl2 PCI3

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Answers (1)

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Cornelius Ingram · Answer 1

The correct answer is Cl₂
Cl₂ is nonpolar or least polar as there is no differentiation in electronegativity of the two atoms of chlorine producing amongst them. CCl₄ exhibits four C-Cl bonds. The C-atom is electropositive and Cl is electronegative. Therefore, there are four dipoles in CCl₄. Though, these dipoles cancel each other because of the tetrahedral geometry of the molecule. Therefore, CCl₄ is less polar in comparison to others, however, more polar in comparison to Cl₂.

PCl₃ exhibits three dipoles because of electronegative chlorine atoms, and electropositive phosphorus atom. Though, the configuration of the molecule is trigonal pyramidal, producing it more polar in comparison to CCl₄. The CaCl₂ is ionic compound, therefore, polar in comparison to the covalent bond compounds.

CsCl is ionic compound, however, more polar in comparison to CaCl₂, as there is the higher difference in electronegativity of Cs and Cl compared with that between the Ca and Cl.

Arrange the following molecules by increasing bond polarity ... ?Cl2 CsCl CCl4 CaCl2 PCI3

Arrange the following molecules by increasing bond polarity ... ?

Cl2 CsCl CCl4 CaCl2 PCI3