Question

trichlorosilane is extremely important in the electronics industry, it undergoes a thermal decomposition reaction (that you dont need to know about right now) in chemical vapor deposition processes (also dont need to know) to produce polycrystalline silicon, a pure form of elemental silicon used in photovoltaic (solar energy conversion) and other electronics applications. is trichlorosilane polar or nonpolar? polar nonpolar dont test me yet, i am trying to gain an understanding before attempting to answer this question.

Explanation:

Polarity in a molecule depends on the electronegativity difference between atoms and the molecular geometry. In trichlorosilane ($SiHCl_3$), the $Si - Cl$ bonds are polar due to the electronegativity difference (chlorine is more electronegative than silicon), and the molecular geometry is tetrahedral which does not cancel out the bond - dipoles. So, it is polar.

Answer:

polar