which molecular structure does not contain three atoms bonded at an angle between 109 and 110.
A.ethanoic acid
B.graphite
C.propane
D.Silicon(IV)oxide
Can you explain what the question is asking what does it mean by 3 atoms?

Question

which molecular structure does not contain three atoms bonded at an angle between 109 and 110.
A.ethanoic acid 
B.graphite
C.propane
D.Silicon(IV)oxide 
Can you explain what the question is asking what does it mean by 3 atoms?

anonymous · Answer

I know graphite has 120 but won't D be having 180 since it's linear

aaronq · Answer

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Silicon (IV) oxide has bonds similar to methane, it doesn't exist as $SiO_2$ but a network (quartz).

aaronq · Answer

Graphite (which are graphene sheets) has bonds at 120, so that should be the answer

anonymous · Answer

Ohh! Do you know some other quartz so i can memorise them incase they come up in exam.

aaronq · Answer

other quartz? you mean network solid?

anonymous · Answer

Yeah yeah.

anonymous · Answer

Solids that have same structure as quartz.

aaronq · Answer

oh hmm, most metal oxides exist as networks. Have you taken inorganic chemistry? specifically the stuff dealing with ionic solids/packing structures?

anonymous · Answer

Yes i took those classes

aaronq · Answer

okay, review some of the common structures and you should be okay

anonymous · Answer

Yeah i'll do that thanks.