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CHXII10:HALOALKANES AND HALOARENES

322446 Which of the following reactions yields biphenyl from chlorobenzene?

1 Swarts reaction

2 Wurtz reaction

3 Fittig reaction

4 Finkelstein reaction

MHTCET - 2021

CHXII10:HALOALKANES AND HALOARENES

322447 The reaction of ethyl bromide with a lead-sodium alloy gives

1 Tetraethyl bromide

2 Tetraethyl lead

3 Sodium ethoxide

4 None of these

CHXII10:HALOALKANES AND HALOARENES

322448 Assertion :
Chlorobenzene on reaction with sodium metal in the presence of dry ether gives diphenyl.
Reason :
This reaction is called Ullmann reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII10:HALOALKANES AND HALOARENES

322449 Chloro benzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

1 Fittig reaction

2 Wurtz Fittig reaction

3 Wurtz reaction

4 Sandmeyer reaction

CHXII10:HALOALKANES AND HALOARENES

322450 Which of the following represents Wurtz - Fittig reaction?

1

C_{6} H_{5} I  +  2Na  +  C H_{3} I \overset{dryether}{\to} C_{6} H_{5} C H_{3} +  2NaI

2

2 C_{6} H_{5} I  +  2Na \overset{dry ether}{\to}

C_{6} H_{5} C_{6} H_{5} + 2 NaI

3

2C H_{3} C H_{2} I  +  2Na \overset{dry ether}{\to}

C H_{3} C H_{2} C H_{2} C H_{3} +  2NaI

4

C H_{3} Br  +  AgF \to C H_{3} F  +  AgBr

Explanation:

The reaction of an aryl halide with alkyl halide and sodium metal in presence of dry ether to give substituted aromatic compound is Wurtz-Fittig reaction.
$C_{6} H_{5} I + 2 Na + {CH}_{3} I \overset{dryether}{⟶} C_{6} H_{5} {CH}_{3} + 2 NaI$

AIIMS - 2018

CHXII10:HALOALKANES AND HALOARENES

322446 Which of the following reactions yields biphenyl from chlorobenzene?

1 Swarts reaction

2 Wurtz reaction

3 Fittig reaction

4 Finkelstein reaction

MHTCET - 2021

CHXII10:HALOALKANES AND HALOARENES

322447 The reaction of ethyl bromide with a lead-sodium alloy gives

1 Tetraethyl bromide

2 Tetraethyl lead

3 Sodium ethoxide

4 None of these

CHXII10:HALOALKANES AND HALOARENES

322448 Assertion :
Chlorobenzene on reaction with sodium metal in the presence of dry ether gives diphenyl.
Reason :
This reaction is called Ullmann reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII10:HALOALKANES AND HALOARENES

322449 Chloro benzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

1 Fittig reaction

2 Wurtz Fittig reaction

3 Wurtz reaction

4 Sandmeyer reaction

CHXII10:HALOALKANES AND HALOARENES

322450 Which of the following represents Wurtz - Fittig reaction?

1

C_{6} H_{5} I  +  2Na  +  C H_{3} I \overset{dryether}{\to} C_{6} H_{5} C H_{3} +  2NaI

2

2 C_{6} H_{5} I  +  2Na \overset{dry ether}{\to}

C_{6} H_{5} C_{6} H_{5} + 2 NaI

3

2C H_{3} C H_{2} I  +  2Na \overset{dry ether}{\to}

C H_{3} C H_{2} C H_{2} C H_{3} +  2NaI

4

C H_{3} Br  +  AgF \to C H_{3} F  +  AgBr

Explanation:

The reaction of an aryl halide with alkyl halide and sodium metal in presence of dry ether to give substituted aromatic compound is Wurtz-Fittig reaction.
$C_{6} H_{5} I + 2 Na + {CH}_{3} I \overset{dryether}{⟶} C_{6} H_{5} {CH}_{3} + 2 NaI$

AIIMS - 2018

CHXII10:HALOALKANES AND HALOARENES

322446 Which of the following reactions yields biphenyl from chlorobenzene?

1 Swarts reaction

2 Wurtz reaction

3 Fittig reaction

4 Finkelstein reaction

MHTCET - 2021

CHXII10:HALOALKANES AND HALOARENES

322447 The reaction of ethyl bromide with a lead-sodium alloy gives

1 Tetraethyl bromide

2 Tetraethyl lead

3 Sodium ethoxide

4 None of these

CHXII10:HALOALKANES AND HALOARENES

322448 Assertion :
Chlorobenzene on reaction with sodium metal in the presence of dry ether gives diphenyl.
Reason :
This reaction is called Ullmann reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII10:HALOALKANES AND HALOARENES

322449 Chloro benzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

1 Fittig reaction

2 Wurtz Fittig reaction

3 Wurtz reaction

4 Sandmeyer reaction

CHXII10:HALOALKANES AND HALOARENES

322450 Which of the following represents Wurtz - Fittig reaction?

1

C_{6} H_{5} I  +  2Na  +  C H_{3} I \overset{dryether}{\to} C_{6} H_{5} C H_{3} +  2NaI

2

2 C_{6} H_{5} I  +  2Na \overset{dry ether}{\to}

C_{6} H_{5} C_{6} H_{5} + 2 NaI

3

2C H_{3} C H_{2} I  +  2Na \overset{dry ether}{\to}

C H_{3} C H_{2} C H_{2} C H_{3} +  2NaI

4

C H_{3} Br  +  AgF \to C H_{3} F  +  AgBr

Explanation:

The reaction of an aryl halide with alkyl halide and sodium metal in presence of dry ether to give substituted aromatic compound is Wurtz-Fittig reaction.
$C_{6} H_{5} I + 2 Na + {CH}_{3} I \overset{dryether}{⟶} C_{6} H_{5} {CH}_{3} + 2 NaI$

AIIMS - 2018

CHXII10:HALOALKANES AND HALOARENES

322446 Which of the following reactions yields biphenyl from chlorobenzene?

1 Swarts reaction

2 Wurtz reaction

3 Fittig reaction

4 Finkelstein reaction

MHTCET - 2021

CHXII10:HALOALKANES AND HALOARENES

322447 The reaction of ethyl bromide with a lead-sodium alloy gives

1 Tetraethyl bromide

2 Tetraethyl lead

3 Sodium ethoxide

4 None of these

CHXII10:HALOALKANES AND HALOARENES

322448 Assertion :
Chlorobenzene on reaction with sodium metal in the presence of dry ether gives diphenyl.
Reason :
This reaction is called Ullmann reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII10:HALOALKANES AND HALOARENES

322449 Chloro benzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

1 Fittig reaction

2 Wurtz Fittig reaction

3 Wurtz reaction

4 Sandmeyer reaction

CHXII10:HALOALKANES AND HALOARENES

322450 Which of the following represents Wurtz - Fittig reaction?

1

C_{6} H_{5} I  +  2Na  +  C H_{3} I \overset{dryether}{\to} C_{6} H_{5} C H_{3} +  2NaI

2

2 C_{6} H_{5} I  +  2Na \overset{dry ether}{\to}

C_{6} H_{5} C_{6} H_{5} + 2 NaI

3

2C H_{3} C H_{2} I  +  2Na \overset{dry ether}{\to}

C H_{3} C H_{2} C H_{2} C H_{3} +  2NaI

4

C H_{3} Br  +  AgF \to C H_{3} F  +  AgBr

Explanation:

The reaction of an aryl halide with alkyl halide and sodium metal in presence of dry ether to give substituted aromatic compound is Wurtz-Fittig reaction.
$C_{6} H_{5} I + 2 Na + {CH}_{3} I \overset{dryether}{⟶} C_{6} H_{5} {CH}_{3} + 2 NaI$

AIIMS - 2018

CHXII10:HALOALKANES AND HALOARENES

322446 Which of the following reactions yields biphenyl from chlorobenzene?

1 Swarts reaction

2 Wurtz reaction

3 Fittig reaction

4 Finkelstein reaction

MHTCET - 2021

CHXII10:HALOALKANES AND HALOARENES

322447 The reaction of ethyl bromide with a lead-sodium alloy gives

1 Tetraethyl bromide

2 Tetraethyl lead

3 Sodium ethoxide

4 None of these

CHXII10:HALOALKANES AND HALOARENES

322448 Assertion :
Chlorobenzene on reaction with sodium metal in the presence of dry ether gives diphenyl.
Reason :
This reaction is called Ullmann reaction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII10:HALOALKANES AND HALOARENES

322449 Chloro benzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

1 Fittig reaction

2 Wurtz Fittig reaction

3 Wurtz reaction

4 Sandmeyer reaction

CHXII10:HALOALKANES AND HALOARENES

322450 Which of the following represents Wurtz - Fittig reaction?

1

C_{6} H_{5} I  +  2Na  +  C H_{3} I \overset{dryether}{\to} C_{6} H_{5} C H_{3} +  2NaI

2

2 C_{6} H_{5} I  +  2Na \overset{dry ether}{\to}

C_{6} H_{5} C_{6} H_{5} + 2 NaI

3

2C H_{3} C H_{2} I  +  2Na \overset{dry ether}{\to}

C H_{3} C H_{2} C H_{2} C H_{3} +  2NaI

4

C H_{3} Br  +  AgF \to C H_{3} F  +  AgBr

Explanation:

The reaction of an aryl halide with alkyl halide and sodium metal in presence of dry ether to give substituted aromatic compound is Wurtz-Fittig reaction.
$C_{6} H_{5} I + 2 Na + {CH}_{3} I \overset{dryether}{⟶} C_{6} H_{5} {CH}_{3} + 2 NaI$

AIIMS - 2018

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