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H2CO; H2CO is polar, whereas CH3CH3 is nonpolar. H2CO has dipole forces in addition to LD forces. CH3CH3 only has LD forces.
sp2
Formaldehyde
H2CO
sp2
Formaldehyde H2CO
POLAR
Yes
Trigonal planar
H2co
Yes. H2CO is formaldehyde or methanal. It has two single C-H bonds and a C=O double bond
Polar