The polarity of a specific alcohol can depend on the length of the carbon and hydrogen chains formed, such that an alcohol with a very long chain can exhibit more nonpolar characteristics. The alcohol or hydroxyl (-OH) group can have compounds that are very polar like methanol and ethanol, while another like hexanol is more nonpolar than polar.Know More
This is because the chain length increases when comparing methanol and hexanol. However, there is still a small polar effect evident in hexanol. Methanol and ethanol are soluble in water.
To find if an alcohol is polar or tends to be nonpolar, students can use the rule that if the ratio between carbon and oxygen in the compound is less than 4:1, then the alcohol compound is miscible in water and so it is polar.Learn more in Atoms & Molecules
CF4 is a non-polar molecule. There are four C-F bonds that are individually polar. The geometry is tetrahedral, so the polarities of the bonds cancel and the molecule is non-polar.Full Answer >
SF6 is not polar. Although the S-F bond is polar, the SF6 molecule has octahedral symmetry, and the effects of the dipoles of the six bonds cancel one another out.Full Answer >
Hydrogen chloride is a polar molecule because it contains a polar, covalent bond between hydrogen and chlorine. This gives the hydrogen a partial positive charge and the chlorine a partial negative charge.Full Answer >
NCl3 is a slightly polar molecule. This is because nitrogen has a lone pair of electrons that repels the bonded electron pairs of the N-Cl covalent bonds, thus giving the molecule an asymmetric structure where the polarities of the bonds do not cancel each other out.Full Answer >