Cyanide Ion, CN-, Is a Stronger Base Than Ammonia, NH₃

question 193

Multiple Choice

Cyanide ion, CN-, is a stronger base than ammonia, NH₃. When ammonia reacts with hydrocyanic acid, HCN, what species are present in the solution in the largest amount?

• A) hydrocyanic acid, HCN, and ammonia, NH₃
• B) hydrocyanic acid, HCN, and ammonium ion, NH₄⁺
• C) cyanide ion, CN-, and ammonia, NH₃
• D) cyanide ion, CN-, and ammonium ion, NH₄⁺

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Definitions:

Human Lineage

The evolutionary path leading to and including Homo sapiens, marked by significant milestones such as bipedalism and complex tool use.

Leakey's Hypothesis

A theory proposing that the development of bipedalism in human ancestors was driven by ecological changes that favored standing and walking on two legs.

Genus Homo

The taxonomic genus which includes modern humans (Homo sapiens) and closely related species.

Tool Use

The behavior of using objects as tools to perform tasks such as obtaining food, shelter, or for defensive purposes, observed in various animal species.