The incorrect order is

  • A
    $N > P > As$ : Strength of $\pi$-bond with oxygen atom
  • B
    $SiF_4 > SiCl_4 > SiBr_4 > SiI_4$ : Thermal stability
  • C
    $H_2S > H_2Se > H_2Te$ : Arrhenius acid character
  • D
    $CaBr_2 > MgBr_2 > BeBr_2$ : Melting point

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