Consider the molecule SiCl₄.The electronegativity values for Si and Cl are 1.8 and 3.0,respectively.Based on these values and on consideration of molecular geometry,the Si-Cl bond is ________ and the molecule is ________. A)polar;polar B)nonpolar;nonpolar C)polar;nonpolar D)nonpolar;polar E)none of the above

Question

Quizplus · Accepted Answer

The molecule is polar because the Si-Cl bond is polar due to the large electronegativity difference between Si (1.8) and Cl (3.0). However, the molecule as a whole is nonpolar due to its symmetrical tetrahedral geometry with the two ₄ groups cancelling out the dipole moment of the Si-Cl bond. Therefore, the correct answer is C (polar; nonpolar).

Consider the Molecule SiCl4

Consider the Molecule SiCl₄