polar
Polar!
If you think to ammonia molecule, this is polar.
Nonpolar
Non polar. It is a hydrocarbon and most hydrocarbons are nonpolar.
Any bond between two atoms of the same element are non polar. Hence, O-O bond is non polar.
GeH4 is tetrahedral- (same as methane) - any polarity in the Ge-H bonds cancels each other out - do the molecule is non-polar.
Both Br and Br and H and H form non-polar covalent bonds.
The covalent bond between carbon and hydrogen is NON-POLAR.
No, they are the same atom and there for there is no un even distribution of electrons, making it non polar.
PH3 is a non-polar covalent molecule. This is somehow confusing because, when you draw out the Lewis diagram, you will observe a lone pair on the P atom. However, if the electronegativity difference does not have a polar bond, then no matter what happens, it will always be non polar. In this case, the EN is 0.01, which indicates non polar. (Non polar EN is 0~0.4)To decide whether a molecule is polar or non-polar, first draw the Lewis diagram. Then calculate the electronegativity. If the electronegativity is non polar, then no matter it has lone pairs or it has more than one group around the central atom, it will always be non polar. In this case, PH3 is non polar because of it has a non polar bond indicated by the electronegativity even though it has lone pairs.But if the bond is polar, then you might have a chance to get a polar molecule depending on either of these 2 factors:1. If there are lone pairs2. If there are other groups around the central atomFor example, H2O is polar because:1.It has a polar bond for electronegativity2.It has lone pairs(Even if it doesn't have a other groups around the central atom, it's still polar because it's polar if you just satisfy either of the 2 conditions)If both conditions of the above are not met, then it's non polar even if it has a polar bond. Like CO2, a molecule has a polar bond, but fails to meet both of the conditions, is a non polar molecule.Always remember to check your electronegativity. Remember if a molecule only has non polar bonds, then it must be a non polar molecule no matter which condition is satisfied after (ex. lone pairs). If a molecule has polar bonds, then it may be a polar molecule depending on either of the 2 conditions listed.
Butanol, being an alcohol, is slightly polar. The C-O-H bonds are responsible for that. O being more electronegative pulls electrons towards itself from C and H atoms. However, it is less polar than methanol or ethanol.
Alcohols generally become more polar as they increase in size because they have more oxygen-hydrogen bonds which contribute to their polarity. This increased polarity can affect their solubility, boiling point, and intermolecular interactions.