Electrophilic substitution on (2-nitrovinyl)benzene occurs at the meta position. Draw resonance structures to show how the ring is electron-poor at the ortho and para positions.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

the correct answer would be d. hope this !

it is the most commonly accepted one

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.