315378 In the reaction
\(\begin{array}{*{20}{l}}
{{\rm{C}}{{\rm{r}}_{\rm{2}}}{\rm{O}}_7^{2 - } + {\rm{14}}{{\rm{H}}^ + } + {\rm{6}}{{\rm{I}}^ - } \to }\\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{2C}}{{\rm{r}}^{3 + }}{\rm{ + 7}}{{\rm{H}}_{\rm{2}}}{\rm{O + 3}}{{\rm{I}}_{\rm{2}}}}
\end{array}\)
Which element is reduced

315345 Which of the following statements is/are correct about reduction reaction?
I. Removal of electronegative element.
II. Removal of electropositive element.
III. Adition of electronegative element.
IV. Addition of electropositive element.
Select the correct option

315346 When \(\mathrm{\mathrm{Fe}}\) metal is rusted then \(\mathrm{\mathrm{Fe}}\) is

315347 According to classical concept, oxidation involves

315348 Bleaching action of \(\mathrm{\mathrm{SO}_{2}}\) is due to

315378 In the reaction
\(\begin{array}{*{20}{l}}
{{\rm{C}}{{\rm{r}}_{\rm{2}}}{\rm{O}}_7^{2 - } + {\rm{14}}{{\rm{H}}^ + } + {\rm{6}}{{\rm{I}}^ - } \to }\\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{2C}}{{\rm{r}}^{3 + }}{\rm{ + 7}}{{\rm{H}}_{\rm{2}}}{\rm{O + 3}}{{\rm{I}}_{\rm{2}}}}
\end{array}\)
Which element is reduced

315345 Which of the following statements is/are correct about reduction reaction?
I. Removal of electronegative element.
II. Removal of electropositive element.
III. Adition of electronegative element.
IV. Addition of electropositive element.
Select the correct option

315346 When \(\mathrm{\mathrm{Fe}}\) metal is rusted then \(\mathrm{\mathrm{Fe}}\) is

315347 According to classical concept, oxidation involves

315348 Bleaching action of \(\mathrm{\mathrm{SO}_{2}}\) is due to

315378 In the reaction
\(\begin{array}{*{20}{l}}
{{\rm{C}}{{\rm{r}}_{\rm{2}}}{\rm{O}}_7^{2 - } + {\rm{14}}{{\rm{H}}^ + } + {\rm{6}}{{\rm{I}}^ - } \to }\\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{2C}}{{\rm{r}}^{3 + }}{\rm{ + 7}}{{\rm{H}}_{\rm{2}}}{\rm{O + 3}}{{\rm{I}}_{\rm{2}}}}
\end{array}\)
Which element is reduced

315345 Which of the following statements is/are correct about reduction reaction?
I. Removal of electronegative element.
II. Removal of electropositive element.
III. Adition of electronegative element.
IV. Addition of electropositive element.
Select the correct option

315346 When \(\mathrm{\mathrm{Fe}}\) metal is rusted then \(\mathrm{\mathrm{Fe}}\) is

315347 According to classical concept, oxidation involves

315348 Bleaching action of \(\mathrm{\mathrm{SO}_{2}}\) is due to

315378 In the reaction
\(\begin{array}{*{20}{l}}
{{\rm{C}}{{\rm{r}}_{\rm{2}}}{\rm{O}}_7^{2 - } + {\rm{14}}{{\rm{H}}^ + } + {\rm{6}}{{\rm{I}}^ - } \to }\\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{2C}}{{\rm{r}}^{3 + }}{\rm{ + 7}}{{\rm{H}}_{\rm{2}}}{\rm{O + 3}}{{\rm{I}}_{\rm{2}}}}
\end{array}\)
Which element is reduced

315345 Which of the following statements is/are correct about reduction reaction?
I. Removal of electronegative element.
II. Removal of electropositive element.
III. Adition of electronegative element.
IV. Addition of electropositive element.
Select the correct option

315346 When \(\mathrm{\mathrm{Fe}}\) metal is rusted then \(\mathrm{\mathrm{Fe}}\) is

315347 According to classical concept, oxidation involves

315348 Bleaching action of \(\mathrm{\mathrm{SO}_{2}}\) is due to

315378 In the reaction
\(\begin{array}{*{20}{l}}
{{\rm{C}}{{\rm{r}}_{\rm{2}}}{\rm{O}}_7^{2 - } + {\rm{14}}{{\rm{H}}^ + } + {\rm{6}}{{\rm{I}}^ - } \to }\\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{2C}}{{\rm{r}}^{3 + }}{\rm{ + 7}}{{\rm{H}}_{\rm{2}}}{\rm{O + 3}}{{\rm{I}}_{\rm{2}}}}
\end{array}\)
Which element is reduced

315345 Which of the following statements is/are correct about reduction reaction?
I. Removal of electronegative element.
II. Removal of electropositive element.
III. Adition of electronegative element.
IV. Addition of electropositive element.
Select the correct option

315346 When \(\mathrm{\mathrm{Fe}}\) metal is rusted then \(\mathrm{\mathrm{Fe}}\) is

315347 According to classical concept, oxidation involves

315348 Bleaching action of \(\mathrm{\mathrm{SO}_{2}}\) is due to