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Standard XII

Chemistry

Aromatic Directive Influence

Which of the ...

Question

Which of the following will show a ‘+M’ effect (positive mesomeric effect)
(i) $C H_{3}$ (ii) $- C l$ (iii) $- N H_{2}$ (iv) $- O H$
(v) $- O C H_{3}$ (vi) $- C = O$ (vii) $- C N$

i, ii, iii

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ii, iii, iv, v, vi

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ii, iii, iv, v

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ii, iii, iv

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Solution

The correct option is C ii, iii, iv, v
A directly attached atom having a lone pair will show + M effect.

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Similar questions

Q. Which of the following will show a ‘+M’ effect (positive mesomeric effect)
(i)

C H_{3}

(ii)

- C l

(iii)

- N H_{2}

(iv)

- O H

(v)

- O C H_{3}

(vi)

- C = O

(vii)

- C N

Which of the following are Molecules?

(i) O₂

(ii) Argon

(iii)Ammonia

(iv) Helium

(v) Water

(vi) Sugar

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(i) $- S O_{3} H$

(ii) $- C l$

(iii) $- N H_{2}$

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Which of the following will show a ‘+M’ effect (positive mesomeric effect) (i) CH3 (ii) −Cl (iii) −NH2 (iv) −OH (v) −OCH3 (vi) −C=O (vii) −CN

The correct option is C ii, iii, iv, vA directly attached atom having a lone pair will show + M effect.

Which of the following will show a ‘+M’ effect (positive mesomeric effect)
(i) $C H_{3}$ (ii) $- C l$ (iii) $- N H_{2}$ (iv) $- O H$
(v) $- O C H_{3}$ (vi) $- C = O$ (vii) $- C N$

The correct option is C ii, iii, iv, v
A directly attached atom having a lone pair will show + M effect.