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Explain resonance effect or mesomeric effect is a permanent electronic effect.

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Increasing order of stability of the resonance structure is:

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Which one among the following resonating structures is not correct?
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Draw the resonating structures of Aniline.
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The correct order of basicity is
 
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Resonance effect is not observed in
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The correct order for acid strength of compounds CH≡CH, CH3-C≡CH and CH2=CH2 is as follows:
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Draw the resonating structures of Urea.
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The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, due to 
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The most acidic proton and the strongest nucleophilic nitrogen in the following compound

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respectively, are

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The chlorine atom of the following compound

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that reacts most readily with AgNO3 to give a precipitate is

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Consider the following compounds

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Hyperconjugation occurs in:
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Which of the following molecules is least resonance stabilized?
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In pyrrole, the electron density is maximum on

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The correct statement regarding the basicity of aryl amines is:
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In case of substituted aniline the group which decreases the basic strength is
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Among the following oxoacids, the correct decreasing order of acid strength is :
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The correct increasing order of the basic strength for the following compounds is:

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Among the given species the Resonance stabilised carbocations are:

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The correct order of stability for the following alkoxides is:

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In which of the following molecules, all atoms are coplanar?