1.

C_6H_5N_2Cl+X +H_2O to C_6H_6+N_2+Y +HCl . Here X and Y are respectively.

Answer»

`H_3PO_3,H_3PO_4`
` H_3PO_2,H_3PO_3`
` H_3PO_2,H_3PO_4`
`H_3PO_3, H_3PO_2`

ANSWER :B


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