\[{{S}_{1}}\]: Always all canonical forms do not contribute equally to the resonance hybrid. |
\[{{S}_{2}}\]: In ethanamine and ethenamine nitrogen is \[s{{p}^{3}}\] hybridised. |
\[{{S}_{3}}\]: All 'C-O' bond length in carbonate dianion are equal. |
\[{{S}_{4}}\]: \[C{{H}_{2}}=C=O\]does not exhibit resonance because it is not a conjugated system. |
A) TFTF
B) TTFT
C) FFTT
D) TFTT
Correct Answer: A
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