Q8 / 160 · AP EAMCET 2010 · Chemistry

The orange coloured compound formed when $\mathrm{H}_2 \mathrm{O}_2$ is added to $\mathrm{TiO}_2$ solution acidified with conc $\mathrm{H}_2 \mathrm{SO}_4$ is

  • A
    $\mathrm{Ti}_2 \mathrm{O}_3$
  • B
    $\mathrm{H}_2 \mathrm{Ti}_2 \mathrm{O}_8$
  • C
    $\mathrm{H}_2 \mathrm{TiO}_3$
  • Correct answer
    D
    $\mathrm{H}_2 \mathrm{TiO}_4$

Solution

When an acidified solution of $\mathrm{TiO}_2$ is treated with $\mathrm{H}_2 \mathrm{O}_2$, an intense yellow orange colour is obtained due to the formation of $\mathrm{H}_2 \mathrm{TiO}_4$. $\mathrm{TiO}_2+\mathrm{H}_2 \mathrm{O}_2 \stackrel{\mathrm{H}_2 \mathrm{SO}_4}{\longrightarrow} \mathrm{H}_2 \mathrm{TiO}_4$ This reaction is used for detection of both $\mathrm{Ti}(\mathrm{IV})$ and $\mathrm{H}_2 \mathrm{O}_2$.

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

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