Addition of Br2 on cis-butene-2 gives:
1. A racemic mixture of 2,3-dibromobutane
2. Meso form of 2,3-dibromobutane
3. Dextro form of 2,3-dibromobutane
4. Laevo form of 2,3-dibromobutane
Chlorobenzene reacts with Mg in dry ether to give a compound (A) which further reacts with ethanol to yield
1. Phenol 2. Benzene
3. Ethyl benzene 4. Phenyl ether
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P-chloro toulene is reacted with liquid then the product formed is
1. o-toulidine
2. m-toluidine
3. p-toluidine
4. Both (1) & (3)
Arrange the following in the order of C-Br bond strength in a polar solvent
1. I<II<III<IV
2. III<IV<I<II
3. IV<III<II<I
4. II<I<III<IV
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The correct statement among the following regarding is -
1. Inversion of configuration
2. Retention of configuration
3. Conversion of configuration
4. Both (1) and (2)
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Para-substituted benzyl bromide undergoes SN1 reaction with nucleophiles:
Arrange given four compounds in their decreasing order of reactivity for the above reaction:
1. II>I>III>IV
2. I>IV>III>II
3. I>IV>II>III
4. II>III>IV>I
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Acidity of Fluoroform (I), bromoform (II), Iodoform (III) and chloroform (IV) in decreasing order is as follows:
1. I>II>III>IV
2. IV>III>II>I
3. IV>I>II>III
4. IV>I>III>I
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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