Chemistry problems

_____1) Which atom below has 4 valence electrons?
a) Carbon b) Beryllium c) Hydrogen d) Nitrogen e) None

_____2) What is the correct Lewis dot structure for oxygen?
a) b) c) d) e) no right choice

_____3) Which chemical has the most number of valence electrons in its Lewis structure (electron-dot structure)?
a) methane b) hydrogen cyanide c) dihydrogen monoxide d) nitrogen trihydride e) all the same

_____ 4) Which choice below has the correct Lewis structure (electron-dot structure) ?
a) b) c) d) e) all are incorrect

____ 5) What is the molecular geometry of dihydrogen monoxide?
a) linear b) trigonal planar c) bent d) tetrahedral e) no right answer
6) For each of the chemical listed, place a check mark () on all the type of attractive / intermolecular forces that the chemical possesses and determine if the chemical is polar or nonpolar.
Dipole-Dipole LDF H-Bond Circle the correct choice.
methane Nonpolar or polar
Hydrogen cyanide Nonpolar or polar
Dihydrogen monoxide Nonpolar or polar
Nitrogen trihydride Nonpolar or polar

Complete the Lewis Structure for the chemical below, and answer the questions next to the structure.

What is the molecular geometry around the carbon atom?
a) linear b) trigonal c) bent d) tetrahedral e) no right choice

What is the molecular geometry around the oxygen atom?
a) linear b) trigonal c) bent d) tetrahedral e) no right choice

Is the chemical polar or nonpolar?

Name all the intermolecular forces this chemical possesses.