Inductive Effect

Q. In which $(C-C)$ bond of the inductive effect is expected to be the least?

1. 1
2. 2
3. 3
4. 4
5. None of the above

Q.

What is the observed order of the stability of the carbocation ${-\left({\mathrm{CH}}_3\right)}_3{C}^{+}>,{}_{2}C{H}^{+}\mathit{,}\mathit{}C{H}_{3}C{H}_2^{+}\mathit{}and\mathit{}{\mathrm{CH}}_3^{+}$

Q. The correct order of strength of $+I$ effect is:
I. $-C{H}_3$ II. $-C{D}_3$ III. $-C{T}_3$ IV. $-CH{D}_2$

1. I > II > III > IV
2. I > IV > II > III
3. III > IV > II > I
4. III > II > IV > I

Q. Which one of the following is incorrect regarding Inductive effect ?

1. Involves polarisation of pi electron
2. Distance independent effect
3. Creates net negative charge in the molecule
4. All of the above

Q. Which one of the following electronic effect is Temporary ?

1. Hyperconjugation
2. Electromeric
3. Inductive
4. Resonance

Q. Which of the following acids has the smallest dissociation constant?

1. $C{H}_{3}CHFCOOH$
2. $FC{H}_{2}C{H}_{2}COOH$
3. $BrC{H}_{2}C{H}_{2}COOH$
4. $C{H}_{3}CHBrCOOH$

Q. Arrange the following groups in the order of decreasing (-I) effect.

1. $-F$
2. $-CN$
3. $-Cl$
4. $-I$
5. $-COOH$

Q. In which of the following cases incorrect direction of inductive effect is / are shown?

1. 
2. 
3. 
4. 

Q. Which of the following is the correct decreasing order of the stability using concept of inductive effect?
$\left(i\right)C{H}_3-\stackrel{+}{C}H-C{H}_2-OC{H}_3$
$\left(ii\right)C{H}_3-\stackrel{+}{C}H-C{H}_2-C{H}_3$
$\left(iii\right)C{H}_3-\stackrel{+}{C}H-\stackrel{\stackrel{O}{||}}{C}-C{H}_3$

1. $\left(iii\right)>\left(i\right)>\left(ii\right)$
2. $\left(i\right)>\left(ii\right)>\left(iii\right)$
3. $\left(iii\right)>\left(ii\right)>\left(i\right)$
4. $\left(ii\right)>\left(i\right)>\left(iii\right)$

Q.

$\underset{\underset{Cl}{|}}{C{H}_2}-OH$ is more acidic than $\underset{\underset{N{O}_2}{|}}{C{H}_2}-C{H}_2-OH$

1. True

2. False

Q. The carbonyl group has following resonating structure.

The correct order of stability of these structures is:

1. $i)>ii)>iii)$
2. $iii)>i)>ii)$
3. $i)>iii)>ii)$
4. $iii)>ii)>i)$

Q. Arrange the following groups in the order of decreasing (+I) effect with reference to hydrogen.

1. $C_6{H}_5{O}^{-}$
2. $C{R}_3$
3. $CO{O}^{-}$
4. $H$
5. $CH{R}_2$

Q. The correct order of strength of $+I$ effect is:
I. $-C{H}_3$ II. $-C{D}_3$ III. $-C{T}_3$ IV. $-CH{D}_2$

1. I > II > III > IV
2. I > IV > II > III
3. III > IV > II > I
4. III > II > IV > I

Q. Arrange the following in increasing order of $+I$ effect :
$1^{\circ }\text{Alkyl Group,}{2}^{\circ }\text{Alkyl Group,}{3}^{\circ }\text{Alkyl Group}\text{and Methyl Group}$

1. $1^{\circ }\text{Alkyl Group}<2^{\circ }\text{Alkyl Group}<3^{\circ }\text{Alkyl Group}<\text{Methyl Group}$
2. $\text{Methyl Group}<1^{\circ }\text{Alkyl Group}<2^{\circ }\text{Alkyl Group}<3^{\circ }\text{Alkyl Group}$
3. $1^{\circ }\text{Alkyl Group}<3^{\circ }\text{Alkyl Group}<2^{\circ }\text{Alkyl Group}<\text{Methyl Group}$
4. $\text{Methyl Group}<3^{\circ }\text{Alkyl Group}<1^{\circ }\text{Alkyl Group}<1^{\circ }\text{Alkyl Group}$

Q. Which of the following is/are permanent electronic displacement effect(s)?

1. Inductive effect
2. Resonance effect
3. Electromeric effect
4. Hyperconjugation

Q. Which of the following is incorrect regarding inductive effect?

1. Inductive effect ceases to
   operate (or is negligible) after 3rd Carbon from the substituent.
2. Inductive effect is a temporary effect
3. Inductive effect occurs due to polarisation of sigma electrons
4. Electron pair shifts towards more electronegative atom partially and permanently.

Q. Which one is the most acidic compound?

1. 
2. 
3. 
4. 

Q. Which of the following is an application of inductive effect?

1. Stability of carbocations
2. Bond length
3. Dipole moment
4. Strength of carboxylic acids

Q. Which of the following is the correct decreasing order of the stability using concept of inductive effect?
$\left(i\right)C{H}_3-\stackrel{+}{C}H-C{H}_2-OC{H}_3$
$\left(ii\right)C{H}_3-\stackrel{+}{C}H-C{H}_2-C{H}_3$
$\left(iii\right)C{H}_3-\stackrel{+}{C}H-\stackrel{\stackrel{O}{||}}{C}-C{H}_3$

1. $\left(iii\right)>\left(i\right)>\left(ii\right)$
2. $\left(i\right)>\left(ii\right)>\left(iii\right)$
3. $\left(iii\right)>\left(ii\right)>\left(i\right)$
4. $\left(ii\right)>\left(i\right)>\left(iii\right)$

Q. Which of the following compounds contain an electron withdrawing group ?

1. 
2. 
3. 
4.