In a Qualitative Cation Analysis, the Unknown Ion Is Precipitated

question 17

Multiple Choice

In a qualitative cation analysis, the unknown ion is precipitated by HCl, remains as a chloride solid in hot water, and the precipitate turns black upon addition of ammonia. The unknown ion is ________.

• A) Hg22+
• B) Pb2+
• C) Ag+
• D) K+
• E) Cd2+

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Definitions:

Formal Proposal

A detailed and structured offer or plan submitted for evaluation or consideration.

Qualifications

The skills, knowledge, and experience required to perform a job or task, often demonstrated through education, training, or experience.

Scope

The extent or range of view, outlook, application, operation, or effectiveness of an object, project, or proposal.

Scope

The extent of the area or subject matter that something deals with or to which it is relevant.