Question

Which radicals are precipitated in ${\left(N{H}_4\right)}_{2}C{O}_3$ in presence of $N{H}_{4}Cl$ and $N{H}_{4}OH$.

• A. $Ca$, $Ba$, $Sr$
• B. $Mg$
• C. Both (a) and (b)
• D. None of these

Answer 1

Answer: (A)

$Ca$, $Ba$, $Sr$

Option (A) is correct.
$Ca$, $Ba$, $Sr$ radicals are precipitated in ${\left(N{H}_4\right)}_{2}C{O}_3$ in presence of $N{H}_{4}Cl$ and $N{H}_{4}OH$.
${\left(N{H}_4\right)}_{2}C{O}_3$ is group reagent for V group radicals in presence of $N{H}_{4}Cl$ and $N{H}_{4}OH$.