Which ion is detected by Nessler's reagent?

N H_{4}^{+}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

M n O_{4}^{-}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

P O_{4}^{3 -}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C r O_{4}^{2 -}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $N H_{4}^{+}$
${N H_{4}}^{+} + 2 [H g I_{4}]^{2 -} + 4 O H^{-} \to H g O . H g (N H_{2}) I + 7 I^{-} + 3 H_{2} O$
Nessler's reagent is $K_{2} [H g I_{4}]^{2 -}$ . The ammonia gas is formed by the reaction of ammonium ions with NaOH, which reacts with Nessler's reagent to form a brown precipitate of $H g O . H g (N H_{2}) I$ .

Suggest Corrections

Similar questions

In Nessler's reagent for detection of ammonia, the

active species is :

Join BYJU'S Learning Program