Q6 / 60 · KVPY 2012 (SA) · Chemistry

Among the following, the most basic oxide is -

  • A
    $\mathrm{Al}_{2} \mathrm{O}_{3}$
  • B
    $\mathrm{SiO}_{2}$
  • C
    $\mathrm{P}_{2} \mathrm{O}_{5}$.
  • Correct answer
    D
    $\mathrm{Na}_{2} \mathrm{O}$

Solution

$\stackrel{\mathrm{Na}_{2} \mathrm{O}>\mathrm{Al}_{2} \mathrm{O}_{3}>\mathrm{SiO}_{2}>\mathrm{P}_{2} \mathrm{O}_{5}}{\longrightarrow}$ Basic Nature $\downarrow$

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

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