Q22 / 160 · WBJEE 2009 · Chemistry

Of the following compounds the most acidic is

  • A
    $\mathrm{As}_2 \mathrm{O}_3$
  • Correct answer
    B
    $\mathrm{P}_2 \mathrm{O}_5$
  • C
    $\mathrm{Sb}_2 \mathrm{O}_3$
  • D
    $\mathrm{Bi}_2 \mathrm{O}_3$

Solution

In a group as we go downwards, the oxide basic character increases hence maximum acidic oxide is $\mathrm{P}_2 \mathrm{O}_5$

Hence, the correct answer is option: 'B'.

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