MCQ
In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group $IV$ in qualitative inorganic analysis?
- ✓$Fe ^{3+}$
- B$Zn ^{2+}$
- C$CO ^{2+}$
- D$Ni ^{2+}$
$Fe ^{3+}= III ^{ rd } \text { Group }$
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$\mathrm{A}+\mathrm{B} \rightleftharpoons 2 \mathrm{C}$
the value of equilibrium constant is $100$ at $298\, \mathrm{~K}$. If the initial concentration of all the three species is $1\, \mathrm{M}$ each, then the equilibrium concentration of $\mathrm{C}$ is $\mathrm{X} \times 10^{-1} \,\mathrm{M}$. The value of $\mathrm{x}$ is $.....$ (Nearest integer)