Which of the following is the strongest - $\mathrm{I}$ group:

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 142

Which is correct order of $+$ $\mathrm{I}$ effect.

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 143

Which of the following statement is not true about the resonance contributing structures to a resonance hybrid 

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 144

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 145

Which of the following resonance structures does not represent the correct stability order:

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 146

The most stable resonating structure of following compound is:

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 147

Which of the following series contains atoms/groups having only -m (mesomeric) effect?

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 148

Which of the following group can exert both the $+\mathrm{M}$ and $-\mathrm{I}$ effect?

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Alpha Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>Exercise 2>Q 149

Hyper conjugation is possible in: