Discussion Forum



1)

The product formed in the reaction of SOCl2 with white phosphorus is 


A) $PCl_{3}$

B) $SO_{2}Cl_{2}$

C) $SCl_{2}$

D) $POCl_{3}$

Answer:

Option A

Explanation:

This  problem is based on chemical properties of phosphorus

 White  phosphorus on reaction  with  thionyl  chloride (SOCl2) produces  phosphorus trichloride

           $P_{4}(s)+8SOCl_{2}(l)\rightarrow 4PCl_{3}(l)+4SO_{2}(g)+2S_{2}Cl_{2}(g)$

  But if amount  of thionyl chloride (SOCl2) is in excess then it produces phosphrous pentachloride.

    $P_{4}(s)+10SOCl_{2}(l)\rightarrow 4PCl_{5}+10SO_{2}$

 Hence, (a)  is the correct choice.