MCQ
Correct statement(s) is/are
- Aan acidified solution of $K_2Cr_2O_7$ liberates iodine from $KI$
- B$K_2Cr_2O_7$ is used as a standard solution for estimation of $Fe^{2+}$ ions
- Cin acidic medium, $M = N/6$ for $K_2Cr_2O_7$
- ✓All of the above
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\begin{array}{|l|l|} \hline List\,\,I & List\,\,II \\ \hline (A)\,\,Peroxide & (1)\,\,{C_3}{O_2} \\ \hline (B)\,\,Superoxide & (2)\,\,Pb{O_2} \\ \hline (C)\,\,Dioxide & (3)\,\,K{O_2} \\ \hline (D)\,\,Suboxide & (4)\,\,{H_2}{O_2} \\ \hline \end{array}$
