The increasing order of +ve I-effect shown by H, CH3, C2H5 and C3H7 is-

1. H < CH3 < C2H5 < C3H7

2. H> CH3 <C2H5 > C3H7

3. H < C2H5 < CH3 <C3H7

4. None of the above

Subtopic:  Electron Displacement Effects |
 82%
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The effect that can explain the given order of acidity of the carboxylic acids is-

Cl3CCOOH > Cl2CHCOOH > ClCH2COOH

1. +I effect

2. -I effect

3. +E effect

4. -E effect

Subtopic:  Electron Displacement Effects |
 90%
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O2NCH2CH2O- is more stable than CH3CH2O- because :

1. NOshows +I effect
2. NO2 shows -I effect
3. NO2 decreases the positive charge on the compound
4. Ethyl group increases positive charge on the compound

Subtopic:  Electron Displacement Effects |
 87%
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The effect that makes 2,3–dimethyl-2-butene more stable than 2-butene is-

1. Resonance

2. Hyperconjugation

3. Steric effect

4. Inductive effect

Subtopic:  Electron Displacement Effects |
 83%
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Among the following groups maximum –I effect is exerted by:

\(1 . - C_{6} H_{5}\)
\(2 .\) \(- \left(OCH\right)_{3}\)
\(3 .\) \(- Cl\)
\(4 .\) \(-NO_2\)

Subtopic:  Electron Displacement Effects |
 83%
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The most stable carbocation among the following is-
1. \(({CH_3})_3C\overset{+}{C}H_2\)
2. \(({CH_3})_3\overset{+}{C}\)
3. \({CH_3}CH_2\overset{+}{C}H_2\)
4. \(({CH_3})\overset{+}{C}HCH_2CH_3\)

Subtopic:  Electron Displacement Effects |
 81%
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The most stable carbocation among the following is-

1. \(({CH_3})_3C\overset{+}{C}HCH_3\) 2. \({CH_3}CH_2\overset{+}{C}HCH_2CH_3\)
3. \(({CH_3})_2\overset{+}{C}CH_2CH_2CH_3\) 4. \({CH_3}CH_2\overset{+}{C}H_2\)
Subtopic:  Electron Displacement Effects |
 79%
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The most stable carboxylate ion among the following is-

1. CH3-C||O-O-

2. Cl-CH2-C||O-O-

3. F-CH2-C||O-O-

4. (F)2-CH-C||O-O-

Subtopic:  Electron Displacement Effects |
 79%
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Compare the stability of the two resonating structures given below and mark the correct option:

1. (I)  is more stable than (II)

2. (II) is more stable than (I)

3. (I) and (II) both have the same stability 

4. None of the above

Subtopic:  Electron Displacement Effects |
 76%
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The carbocation among the following that doesn't get stabilized by resonance is :

1. 2.
3. 4.

Subtopic:  Electron Displacement Effects |
 75%
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