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  3. If an amide is treated with P₂O₅ the likely product is an
  4. Which of the following protein destroy the antigen when it enters in body call
  5. The K(sp) of Ag₂CrO₄, AgCl,AgBr and AgI are respectively. 1.1 ˣ 10⁻¹²,1.8 ˣ 10⁻¹⁰,