which of the following statements about secl6 is true (choose the best answer)? select one: a. it is…

which of the following statements about secl6 is true (choose the best answer)? select one: a. it is nonpolar because there is a polar covalent bond and the molecule is symmetrical b. it is polar because there is a polar covalent bond and the molecule is symmetrical c. it is nonpolar because there is a covalent bond d. it is polar because there is a polar covalent bond and the molecule is asymmetrical e. it is polar because because there is a covalent bond f. it is nonpolar because there is a polar covalent bond and the molecule is asymmetrical

which of the following statements about secl6 is true (choose the best answer)? select one: a. it is nonpolar because there is a polar covalent bond and the molecule is symmetrical b. it is polar because there is a polar covalent bond and the molecule is symmetrical c. it is nonpolar because there is a covalent bond d. it is polar because there is a polar covalent bond and the molecule is asymmetrical e. it is polar because because there is a covalent bond f. it is nonpolar because there is a polar covalent bond and the molecule is asymmetrical

Answer

Brief Explanations:

A non - polar molecule has either non - polar bonds or polar bonds that are symmetrically arranged such that the bond dipoles cancel out. In $SeCl_6$, the $Se - Cl$ bonds are polar covalent due to the electronegativity difference between $Se$ and $Cl$. However, $SeCl_6$ has an octahedral molecular geometry which is highly symmetrical. The bond dipoles of the six $Se - Cl$ bonds cancel each other out, making the molecule non - polar.

Answer:

a. It is nonpolar because there is a polar covalent bond and the molecule is symmetrical