Start Free Mock LoginAlready registered? Login here

Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS, Group 3, 4, 5, 6, 0Medium2 minQB

ChemistryMediummultiple choice

A light pink hydrated salt $(X)$ when treated with $BaC ℓ_{2}$ solution produces white precipitate which is insoluble in hydrochloric acid. When ( X ) (aq.) is treated with NaOH (aq.) in the presence of air, brown precipitate ( Y ) is formed which is disolve in $H_{2} O_{2} / H_{2} SO_{4}$ and produces solution of (X) (aq.)

select the CORRECT statement(s) regarding the dark coloured compound (Z) which is formed on reaction of (X) (aq.) with sodium peroxodisulphate.

Options:(select one or more)

Answer:

A, B, D

Solution:

$MnSO_{4} + 2 NaOH + \frac{1}{2} O_{2} \to MnO (OH)_{2} + Na_{2} SO_{4}$

black

$2 Mn^{+ 2} + 5 S_{2} O_{8}^{2 -} + 8 H_{2} O \to 2 MnO_{4}^{-} + 10 SO_{4}^{2 -} + 16 H^{+}$

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS, Group 3, 4, 5, 6, 0

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...