In Nessler's reagent for the detection of ammonia the active species is

Question

In Nessler's reagent for the detection of ammonia the active species is (A) Hg 2 Cl 2 (B) Mg 2+ (C) Hg 2 I 2 (D) HgI 4 2-

Tardigrade Admin · Accepted Answer

Nessler's reagent gives brown ppt. of iodide of Millon's base with ammonium salt. [ HgI 4]2-+ NH 4 Cl +4 OH - arrow underset text Iodide of million base (Brown ppt) NH 2 HgOHgI + I -+ Cl -+3 H 2 O

Q. In Nessler's reagent for the detection of ammonia the active species is

$H g_{2} C l_{2}$

$M g^{2 +}$

$H g_{2} I_{2}$

$H g I_{4}^{2 -}$

Nessler's reagent gives brown ppt. of iodide of Millon's base with ammonium salt.
$< b r / > [H g I_{4}]^{2 -} + N H_{4} Cl + 4 O H^{-} \to Iodide of million base (Brown ppt) N H_{2} H g O H g I + I^{-} + C l^{-} + 3 H_{2} O < b r / >$

Q. In Nessler's reagent for the detection of ammonia the active species is

Hg2​Cl2​

Mg2+

Hg2​I2​

HgI4​2−

Nessler's reagent gives brown ppt. of iodide of Millon's base with ammonium salt. <br/>[HgI4​]2−+NH4​Cl+4OH−→ Iodide of million base (Brown ppt) NH2​HgOHgI​+I−+Cl−+3H2​O<br/>

$H g_{2} C l_{2}$

$M g^{2 +}$

$H g_{2} I_{2}$

$H g I_{4}^{2 -}$

Nessler's reagent gives brown ppt. of iodide of Millon's base with ammonium salt.
$< b r / > [H g I_{4}]^{2 -} + N H_{4} Cl + 4 O H^{-} \to Iodide of million base (Brown ppt) N H_{2} H g O H g I + I^{-} + C l^{-} + 3 H_{2} O < b r / >$