The X and Y in the below mentioned reaction are

X Y
1. Dilute aqueous NaOH, 20 oC HBr/Acetic acid, 20 oC
2. Concentrated alcoholic NaOH, 80 oC HBr/Acetic acid, 20 oC
3. Diluted aqueous NaOH, 20 oC, Br2 / CHCl3 , 0 oC
4. Concentrated alcoholic NaOH, 80 ° C Br2/CHCl3, 0 oC

Subtopic:  Chemical Properties |
 68%
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Which of the following chloro derivatives of benzene would undergo hydrolysis most readily with aqueous KOH to give the corresponding hydroxy derivative 

Subtopic:  Haloarenes: Directive Influence of Halogen |
 85%
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Which of the following will have the maximum dipole moment?

1. CH3F

2. CH3Cl

3. CH3Br

4. CH3I

Subtopic:  Introduction and Physical Properties |
 58%
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What is the total number of chiral products produced by monochlorination of 2-methylbutane ?

1. 2

2. 4

3. 6

4. 8

Subtopic:  Chemical Properties | Isomerism & Chirality |
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The correct order of solvolyis in the following alkyl halide is 

Subtopic:  Mechanism of Reactions | Chemical Properties |
 71%

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Arrange the following halides in the decreasing order of SN1 reactivity:

(I) CH3CH2CH2Cl

(II) CH2=CHCHClCH3

(III) CH3CH2CHClCH3

1. I > II > III

2. II > I > III

3. II > III > I

4. III > II > I

Subtopic:  Mechanism of Reactions |
 82%
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Replacement of 'Cl' of  chlorobenzene to give phenol requires drastic conditions but chlorine of 2,4- dinitrochloro benzene is readily replaced because

1. NO2 makes the ring electrons rich at ortho and para position

2. NO2 withdraws electrons from meta position

3. NO2 donates electrons at m-position

4. NO2 withdraws electrons from ortho and para positions 

Subtopic:  Chemical Properties | Haloarenes: Directive Influence of Halogen |
 74%
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Among the following bromides given below, the order of their reactivity in the SN1 reaction is 

1. III > II > I

2. II > III > I

3. III > I > II

4. II > I > III

Subtopic:  Mechanism of Reactions |
 57%
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Which haloarenes is most reactive towards electrophilic substitution reaction ?

1.     2. 
3.  4. 
Subtopic:  Haloarenes: Directive Influence of Halogen |

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When chloroform is reacted with excess of NaOH then final product formed is 

1. HCOOH

2. CH3COOH

3. CH3COONa

4. HCOONa

Subtopic:  Dichloromethane, Trichloromethane & Tetrachloromethane |

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