Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB

ChemistryMediummultiple choice

Passage / Comprehension

"M" is a silver-white metal. It dissolves slowly in dilute acid with the evolution of H₂ and produces an aqueous, colorless solution of metal ion (X).

$(X)$ produce ppt with excess NaOH but produce colourless solution with excess of $NH_{3}$ . Yellow ppt obtain by reaction of $(X)$ with $H_{2} S$ is not soluble in ammonium polysulphide.

Hydroxide of metal is :-

Options:(select one or more)

Answer:

A, B, D

Solution:

“M” is a silver-white metal identified as Zinc (Zn). It dissolves slowly in dilute acids like HCl, evolving H₂ gas and forming a colorless Zn²⁺ solution.
Zinc hydroxide/compounds are insoluble in water and show amphoteric nature.
It is soluble in dilute HCl and also forms complex ions in excess NH₄OH.
Hence, correct options are A, B, and D.

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2

⏱ 2mℹ️ Source: QB

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