1. Tardigrade
  2. Question
  3. Chemistry
  4. An organic compound A , C8H4O3 in dry benzene in the presence of anhydrous AlCl3 gives compound B. The compound B on treatment with PCl5, followed by reaction with 1 F/Pd/( BaSO4) gives compound C, which on reaction with hydrazine gives a cyclised compound D (Cl4H10N2).Identify A , B , C and D . Explain the formation of D from C.

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Q. An organic compound A , $C_8H_4O_3$ in dry benzene in the presence of anhydrous $AlCl_3$ gives compound B. The compound B on treatment with $PCl_5,$ followed by reaction with 1 F/Pd/( $BaSO_4)$ gives compound C, which on reaction with hydrazine gives a cyclised compound D $(Cl_4H_{10}N_2)$.Identify A , B , C and D . Explain the formation of D from C.

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