Determine if the following two structures are identical, isomers, or unrelated?
CH3
CH3CHCH2CH3
CH3CHCH2
CH3
CH3
B
с
identical
isomers
unrelated

Where is the following?

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf