Inductive Effect

Q.

Which of the following molecules has the Maximum Dipole Moment?

1. ${\mathrm{CO}}_2$

2. ${\mathrm{CH}}_4$

3. ${\mathrm{NH}}_3$

4. ${\mathrm{NF}}_3$

Q.

Arrange the following in decreasing order of acidity: ${\mathrm{ClCH}}_2\mathrm{COOH},{\mathrm{Cl}}_3\mathrm{CCOOH},{\mathrm{CH}}_3\mathrm{COOH},{\mathrm{Cl}}_2\mathrm{CHCOOH}$

Q.

The correct decreasing order for acid strength is?

1. ${\mathrm{FCH}}_2\mathrm{COOH}>{\mathrm{NCCH}}_2\mathrm{COOH}>{\mathrm{NO}}_2{\mathrm{CH}}_2\mathrm{COOH}>{\mathrm{ClCH}}_2\mathrm{COOH}$

2. ${\mathrm{CNCH}}_2\mathrm{COOH}>{\mathrm{O}}_2{\mathrm{NCH}}_2\mathrm{COOH}>{\mathrm{FCH}}_2\mathrm{COOH}>{\mathrm{ClCH}}_2\mathrm{COOH}$

3. ${\mathrm{NO}}_2{\mathrm{CH}}_2\mathrm{COOH}>{\mathrm{NCCH}}_2\mathrm{COOH}>{\mathrm{FCH}}_2\mathrm{COOH}>{\mathrm{ClCH}}_2\mathrm{COOH}$

4. ${\mathrm{NO}}_2{\mathrm{CH}}_2\mathrm{COOH}>{\mathrm{FCH}}_2\mathrm{COOH}>{\mathrm{CNCH}}_2\mathrm{COOH}>{\mathrm{ClCH}}_2\mathrm{COOH}$

Q. The correct order of strengths of the carboxylic acids

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

Q.

Explain the terms Inductive and Electromeric effects. Which electron displacement effect explains the following correct orders of acidity of the carboxylic acids?

(a) Cl₃CCOOH > Cl₂CHCOOH > ClCH₂COOH

(b) CH₃CH₂COOH > (CH₃)₂CHCOOH > (CH₃)₃C.COOH

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

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

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 is more stable O2NCH2CH2O- or CH3CH2O- and why?

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

1. 1
2. 2
3. 3
4. 4

Q. Select the acid with the highest $K_a$ (i.e., lowest $p{K}_a$).

1. 
2. 
3. 
4. 

Q.

Which one of the following is the strongest acid?

1. ${\mathrm{ClCH}}_2\mathrm{COOH}$

2. ${\mathrm{BrCH}}_2\mathrm{COOH}$

3. ${\mathrm{FCH}}_2\mathrm{COOH}$

4. ${\mathrm{ICH}}_2\mathrm{COOH}$

Q.

Match the polymers given in Column I with the type of linkage present in them given in Column II.

	Column I		Column II
(i)	Terylene	(a)	Glycosidic linkage
(ii)	Nylon	(b)	Ester linkage
(iii)	Cellulose	(c)	Phosphodiester linkage
(iv)	Protein	(d)	Amide linkage
(v)	RNA

Q. Which of the following is a permanent electron displacement effect?

1. Electromeric
2. Inductive
3. Inductomeric
4. All of the above

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. 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.

Following type of nom-ionic detergents are present in liquid detergents, emulsifying agents and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group (s) present in the molecule.

Q. The correct order of decreasing acid strength of trichloacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is:

1. $B>D>C>A$
2. $B>A>D>C$
3. $A>B>C>D$
4. $A>C>B>D$

Q.

Why CN- is a strong ligand than NC-??Aren't c donor stronger ligands.

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.

Why Barium chloride (${\mathrm{BaCl}}_2$) is not a Lewis acid?

Q. In which $(C-C)$ bond of
$\stackrel{4}{C}{H}_3-\stackrel{3}{C}{H}_2-\stackrel{2}{C}{H}_2-\stackrel{1}{C}{H}_2-Cl$
is the inductive effect expected to be the least ?

1. C-2 and C-3
2. C-2 and C-1
3. C-3 and C-4
4. None of the above

Q. Arrange the following in increasing order of $p{K}_a$ values.

1. I < II < III
2. I < III < II
3. II < III < I
4. II < I < III

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. 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 > II > IV > I
4. III > IV > II > I

Q. What is correct order of stability of the following carbocations:
A. $\stackrel{+}{C}{H}_2-C{H}_3$
B. $\stackrel{+}{C}{H}_2-C{H}_{2}Cl$
C. $\stackrel{+}{C}{H}_2-CHC{l}_2$
D. $\stackrel{+}{C}{H}_2-CC{l}_3$

1. $D>C>B>A$
2. $D>B>C>A$
3. $A>B>C>D$
4. $A>C>B>D$

Q. cr2o3 , cro3 cro arrange according to increases acidic charater

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. Inductive effect refers to

1. Electron displacement along the carbon chain
2. Complete transfer of one of the shared pair of electron to one of the atom joined by a double bond
3. Delocalisation of electrons
4. None of the above

Q. The least basic among the given amines is

1. $(C{H}_3{)}_{3}N$
   
2. $C_2{H}_{5}N{H}_2$
   
3. $(C{H}_3{)}_{2}N$
   
4. $C_6{H}_{5}N{H}_2$