00. Electronic effect and Its Applications
GENERAL ORGANIC CHEMISTRY

231516 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it.

1 decreases electron density at ortho and para positions
2 decreases electron density at meta position
3 increases electron density at meta position
4 increases electron density at ortho and para position
GENERAL ORGANIC CHEMISTRY

231525 +I effect is shown by

1 $-\mathrm{CH}_{3}$
2 $-\mathrm{Br}$
3 $-\mathrm{Cl}$
4 $-\mathrm{NO}_{2}$
GENERAL ORGANIC CHEMISTRY

231526 The order of reactivity of the compounds $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{B}$ $r$ and $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right)\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}$ in $\mathrm{S}_{\mathrm{N}} 2$ reaction is

1 original image
2 original image
3 original image
4 original image
GENERAL ORGANIC CHEMISTRY

231535 The temporary effect in which there is complete transfer of a shared pair of pielectrons to one of the atoms jointed by a multiple bond on the demand of an attacking regent is called

1 Inductive effect
2 Positive resonance effect
3 Negative resonance effect
4 Hyperconjugation
5 Electromeric effect
GENERAL ORGANIC CHEMISTRY

231538 Choose the correct order of decreasing basic strength of the following compounds in aqueous solutin
(i) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}$
(ii) $\mathrm{C}_{2} \mathrm{H}_{5} \mathbf{N H}_{2}$
(iii) $\mathbf{N H}_{3}$
(iv) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$

1 (i) $>$ (ii) $>$ (iii) $>$ (iv)
2 (iv) $>$ (ii) $>$ (iii) $>$ (i)
3 (ii) $>$ (i) $>$ (iii) $>$ (iv)
4 (iv) $>$ (iii) $>$ (ii) $>$ (i)
5 (ii) $>$ (iv) $>$ (iii) $>$ (i)
GENERAL ORGANIC CHEMISTRY

231516 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it.

1 decreases electron density at ortho and para positions
2 decreases electron density at meta position
3 increases electron density at meta position
4 increases electron density at ortho and para position
GENERAL ORGANIC CHEMISTRY

231525 +I effect is shown by

1 $-\mathrm{CH}_{3}$
2 $-\mathrm{Br}$
3 $-\mathrm{Cl}$
4 $-\mathrm{NO}_{2}$
GENERAL ORGANIC CHEMISTRY

231526 The order of reactivity of the compounds $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{B}$ $r$ and $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right)\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}$ in $\mathrm{S}_{\mathrm{N}} 2$ reaction is

1 original image
2 original image
3 original image
4 original image
GENERAL ORGANIC CHEMISTRY

231535 The temporary effect in which there is complete transfer of a shared pair of pielectrons to one of the atoms jointed by a multiple bond on the demand of an attacking regent is called

1 Inductive effect
2 Positive resonance effect
3 Negative resonance effect
4 Hyperconjugation
5 Electromeric effect
GENERAL ORGANIC CHEMISTRY

231538 Choose the correct order of decreasing basic strength of the following compounds in aqueous solutin
(i) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}$
(ii) $\mathrm{C}_{2} \mathrm{H}_{5} \mathbf{N H}_{2}$
(iii) $\mathbf{N H}_{3}$
(iv) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$

1 (i) $>$ (ii) $>$ (iii) $>$ (iv)
2 (iv) $>$ (ii) $>$ (iii) $>$ (i)
3 (ii) $>$ (i) $>$ (iii) $>$ (iv)
4 (iv) $>$ (iii) $>$ (ii) $>$ (i)
5 (ii) $>$ (iv) $>$ (iii) $>$ (i)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
GENERAL ORGANIC CHEMISTRY

231516 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it.

1 decreases electron density at ortho and para positions
2 decreases electron density at meta position
3 increases electron density at meta position
4 increases electron density at ortho and para position
GENERAL ORGANIC CHEMISTRY

231525 +I effect is shown by

1 $-\mathrm{CH}_{3}$
2 $-\mathrm{Br}$
3 $-\mathrm{Cl}$
4 $-\mathrm{NO}_{2}$
GENERAL ORGANIC CHEMISTRY

231526 The order of reactivity of the compounds $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{B}$ $r$ and $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right)\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}$ in $\mathrm{S}_{\mathrm{N}} 2$ reaction is

1 original image
2 original image
3 original image
4 original image
GENERAL ORGANIC CHEMISTRY

231535 The temporary effect in which there is complete transfer of a shared pair of pielectrons to one of the atoms jointed by a multiple bond on the demand of an attacking regent is called

1 Inductive effect
2 Positive resonance effect
3 Negative resonance effect
4 Hyperconjugation
5 Electromeric effect
GENERAL ORGANIC CHEMISTRY

231538 Choose the correct order of decreasing basic strength of the following compounds in aqueous solutin
(i) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}$
(ii) $\mathrm{C}_{2} \mathrm{H}_{5} \mathbf{N H}_{2}$
(iii) $\mathbf{N H}_{3}$
(iv) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$

1 (i) $>$ (ii) $>$ (iii) $>$ (iv)
2 (iv) $>$ (ii) $>$ (iii) $>$ (i)
3 (ii) $>$ (i) $>$ (iii) $>$ (iv)
4 (iv) $>$ (iii) $>$ (ii) $>$ (i)
5 (ii) $>$ (iv) $>$ (iii) $>$ (i)
GENERAL ORGANIC CHEMISTRY

231516 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it.

1 decreases electron density at ortho and para positions
2 decreases electron density at meta position
3 increases electron density at meta position
4 increases electron density at ortho and para position
GENERAL ORGANIC CHEMISTRY

231525 +I effect is shown by

1 $-\mathrm{CH}_{3}$
2 $-\mathrm{Br}$
3 $-\mathrm{Cl}$
4 $-\mathrm{NO}_{2}$
GENERAL ORGANIC CHEMISTRY

231526 The order of reactivity of the compounds $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{B}$ $r$ and $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right)\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}$ in $\mathrm{S}_{\mathrm{N}} 2$ reaction is

1 original image
2 original image
3 original image
4 original image
GENERAL ORGANIC CHEMISTRY

231535 The temporary effect in which there is complete transfer of a shared pair of pielectrons to one of the atoms jointed by a multiple bond on the demand of an attacking regent is called

1 Inductive effect
2 Positive resonance effect
3 Negative resonance effect
4 Hyperconjugation
5 Electromeric effect
GENERAL ORGANIC CHEMISTRY

231538 Choose the correct order of decreasing basic strength of the following compounds in aqueous solutin
(i) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}$
(ii) $\mathrm{C}_{2} \mathrm{H}_{5} \mathbf{N H}_{2}$
(iii) $\mathbf{N H}_{3}$
(iv) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$

1 (i) $>$ (ii) $>$ (iii) $>$ (iv)
2 (iv) $>$ (ii) $>$ (iii) $>$ (i)
3 (ii) $>$ (i) $>$ (iii) $>$ (iv)
4 (iv) $>$ (iii) $>$ (ii) $>$ (i)
5 (ii) $>$ (iv) $>$ (iii) $>$ (i)
GENERAL ORGANIC CHEMISTRY

231516 In electrophilic aromatic substitution reaction, the nitro group is meta directing because it.

1 decreases electron density at ortho and para positions
2 decreases electron density at meta position
3 increases electron density at meta position
4 increases electron density at ortho and para position
GENERAL ORGANIC CHEMISTRY

231525 +I effect is shown by

1 $-\mathrm{CH}_{3}$
2 $-\mathrm{Br}$
3 $-\mathrm{Cl}$
4 $-\mathrm{NO}_{2}$
GENERAL ORGANIC CHEMISTRY

231526 The order of reactivity of the compounds $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{B}$ $r$ and $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}\left(\mathrm{CH}_{3}\right)\left(\mathrm{C}_{6} \mathrm{H}_{5}\right) \mathrm{Br}$ in $\mathrm{S}_{\mathrm{N}} 2$ reaction is

1 original image
2 original image
3 original image
4 original image
GENERAL ORGANIC CHEMISTRY

231535 The temporary effect in which there is complete transfer of a shared pair of pielectrons to one of the atoms jointed by a multiple bond on the demand of an attacking regent is called

1 Inductive effect
2 Positive resonance effect
3 Negative resonance effect
4 Hyperconjugation
5 Electromeric effect
GENERAL ORGANIC CHEMISTRY

231538 Choose the correct order of decreasing basic strength of the following compounds in aqueous solutin
(i) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}$
(ii) $\mathrm{C}_{2} \mathrm{H}_{5} \mathbf{N H}_{2}$
(iii) $\mathbf{N H}_{3}$
(iv) $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}$

1 (i) $>$ (ii) $>$ (iii) $>$ (iv)
2 (iv) $>$ (ii) $>$ (iii) $>$ (i)
3 (ii) $>$ (i) $>$ (iii) $>$ (iv)
4 (iv) $>$ (iii) $>$ (ii) $>$ (i)
5 (ii) $>$ (iv) $>$ (iii) $>$ (i)