The correct statement regarding electrophile is -­

1. Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile

2. Electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile

3. Electrophiles can be either neutral or positively charged species and can form a bond accepting a pair of electrons from a nucleophile

4. Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile

Subtopic:  Nucleophile & Electrophile |
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The most stable carbanion species among the following is-

1. CCl3-

2. CH3-

3. CH2Cl-

4.  CHCl2-

 

Subtopic:  Nucleophile & Electrophile |
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The incorrect statement among the following for a nucleophile is-

1. Nucleophile is a Lewis acid

2. Ammonia is a nucleophile

3. Nucleophiles attack low electron density sites

4. Nucleophiles are not electron seeking

Subtopic:  Nucleophile & Electrophile |
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An electrophile among the following is -

1. OH-

2. NC-

3. R3C-

4. Carbonyl group

Subtopic:  Nucleophile & Electrophile |
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Electrophilic addition reactions proceed in two steps. The first step involves the addition of an electrophile. The major intermediate formed in the first step is -

H3C-HC=CH2+H+?

1. 2° carbanion

2. 1° carbocation

3. 2° carbocation

4. 1° carbanion

Subtopic:  Nucleophile & Electrophile |
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The correct order of the ability of the leaving group is

1.  OCOC2H5>OC2H5>OSO2Et>OSO2CF3

2.  OC2H5>OCOC2H5>OSO2CF3>OSO2Me

3.  OSO2CF3>OSO2Me>OCOC2H5>OC2H5

4.  OCOC2H5>OSO3CF3>OC2H5>OSO2Me

Subtopic:  Nucleophile & Electrophile |
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The species among the following that is not an electrophile is -

1. BH3

2. H3O

3. NO2

4. Cl

Subtopic:  Nucleophile & Electrophile |
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Chlorine atom can be classified as -

1. Carbocation

2. Nucleophile

3. Electrophile

4. Carbanion

 

Subtopic:  Nucleophile & Electrophile |
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The addition of HCl to an alkene proceeds in two steps. The first step is the attack of H+ ion on the double bond portion. The same can be shown as -

1.    

2.  

3.   

4.  All of these are possible

Subtopic:  Nucleophile & Electrophile |
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