MCQ
Strong reducing behaviour of $H _{3} PO _{2}$ is due to
- ALow oxidation state of $P$
- BPresence of one $-OH$ group and two $P-H$ bonds
- CPresence of two $-OH$ groups and one $P-H$ bonds
- ✓Low coordination number of $P$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$3Br_2 + 6CO_3^{2-} + 3H_2O \longrightarrow 5Br^-+ BrO_3^-+ 6HCO_3^-$
Which of the following statements is true regarding this reaction
while $E_{Z{n^{2 + }}/Zn}^o = - 0.76\,V$
$\mathrm{Pt}(s) \mid \mathrm{H}_2(g, 1 \text { bar })\left|\mathrm{H}^{+}(a q, 1 \mathrm{M}) \| \mathrm{M}^{4+}(a q), \mathrm{M}^{2+}(a q)\right| \mathrm{Pt}(s)$
$E_{\text {cell }}=0.092 \mathrm{~V} \text { when } \frac{\left[\mathrm{M}^{2+}(a q)\right]}{\left[\mathrm{M}^{4+}(a q)\right]}=10^x$
Given : $ E_{\mathrm{M}^4 / \mathrm{M}^{2+}}^0=0.151 \mathrm{~V} ; 2.303 \frac{R T}{F}=0.059 \mathrm{~V}$
The value of $x$ is