Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation.
(a) \(C_6H_5OH \)
(b) \(C_6H_5NO_2\)
(c) \( CH_3CH=CHCHO\)
(d) \(C_6H_5–CHO \)
(e) \(C_6H_5–C+H_2\)
(f) \(CH_3CH=CH C+H_2\)

Question

1 gram of sodium hydroxide was treated with 25 ml. of 0.75 M HCI solution, the mass of sodium hydroxide left unreacted is equal to :

Answer 1

(a) The structure of C₆H₅OH is:

The resonating structures of phenol are represented as:

(b) The structure of C₆H₅NO₂ is:

The resonating structures of nitrobenzene are represented as:

(c) CH₃CH = CH - CHO
The resonating structures of the given compound are represented as:

(d) The structure of C₆H₅CHO is:

The resonating structures of benzaldehyde are represented as:

(e) C₆H₅-C+H₂
The resonating structures of the given compound are:

(f) CH₃CH = CHC+H₂
The resonating structures of the given compound are:

Solution and Explanation