H-V-Z reaction involves the use of P and Cl 2 CH 3 CH 2 COOH P - Cl 2- CH 3 CHClCOOH The function of phosphorus isA- As a catalystB- None of the threeC- In the formation of P Cl 3 which carries out halogenation at the - - carbon atomD- In the formation of P Cl 3 which converts - COOH into - COCl-

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H.V.Z reactio...

Question

H.V.Z reaction involves the use of P and $C l_{2}$
$C H_{3} C H_{2} C O O H P, C l_{2} - -- \to C H_{3} C H C l C O O H$ The function of phosphorus is

As a catalyst

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In the formation of $P C l_{3}$ which carries out halogenation at the $α$ - carbon atom

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In the formation of $P C l_{3}$ which converts - COOH into - COCl.

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None of the three

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Solution

The correct option is C
In the formation of $P C l_{3}$ which converts - COOH into - COCl.

Phosphorus converts a little of the acid into acid chloride which is more reactive than the parent carboxylic acid. Thus is the acid chloride. not the acid itself, that undergoes chlorination on the $α$ - carbon.

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Similar questions

H.V.Z reaction involves the use of P and $C l_{2}$
$C H_{3} C H_{2} C O O H P, C l_{2} - -- \to C H_{3} C H C l C O O H$ The function of phosphorus is

P C l_{3} ⇌ P C l_{3} + C l_{2}

in the reversible reaction the moles of

P C l_{3}

and

C l_{2}

are

a, b

and

c

respectively and total pressure is

P

, then value of

K_{p}

is:

Q. In the reaction

P {C l}_{5} ⇌ P {C l}_{3} + {C l}_{2}

the partial pressure of

P {C l}_{3}, {C l}_{2}

and

P {C l}_{5}

are 0.3,0.2 and 0.6

a t m

respectively.If partial pressure of

P {C l}_{3}

and

{C l}_{2}

was increased twice,what will be the partial pressure of

P {C l}_{5}

a t m

Q. A reaction at equilibrium involving 2 moles each of

P C l_{5}, P C l_{3},

and

C l_{2}

is maintained at

250^{o} C

and a total pressure of 3 atm. The value of

K_{p}

is :
Given:

P C l_{5} ⇌ P C l_{3} + C l_{2}

$P C l_{5} ⇌ P C l_{3} + C l_{2}$ in the reversible reaction, the moles of $P C l_{5}$ , $P C l_{3}$ and $C l_{2}$ are a, b and c respectively at equilibrium and total pressure is P, then value of $K_{p}$ is:

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H.V.Z reaction involves the use of P and Cl2 CH3CH2COOHP,Cl2−−−→CH3CHClCOOH The function of phosphorus is

The correct option is C In the formation of PCl3 which converts - COOH into - COCl. Phosphorus converts a little of the acid into acid chloride which is more reactive than the parent carboxylic acid. Thus is the acid chloride. not the acid itself, that undergoes chlorination on the α - carbon.

H.V.Z reaction involves the use of P and $C l_{2}$
$C H_{3} C H_{2} C O O H P, C l_{2} - -- \to C H_{3} C H C l C O O H$ The function of phosphorus is