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 |
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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
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Which of the following will have the maximum dipole moment?
1.
2.
3.
4.
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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
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The correct order of solvolyis in the following alkyl halide is
Arrange the following halides in the decreasing order of SN1 reactivity:
(I)
(II)
(III)
1. I > II > III
2. II > I > III
3. II > III > I
4. III > II > I
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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. makes the ring electrons rich at ortho and para position
2. withdraws electrons from meta position
3. donates electrons at m-position
4. withdraws electrons from ortho and para positions
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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
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Which haloarenes is most reactive towards electrophilic substitution reaction ?
1. | 2. | ||
3. | 4. |
When chloroform is reacted with excess of NaOH then final product formed is
1. HCOOH
2.
3.
4. HCOONa