Which Combination of Formula and Name Is Incorrect

question 99

Multiple Choice

Which combination of formula and name is incorrect?

• A)K⁺ = potassium ion
• B)I^- = iodide ion
• C)Mg⁺ = magnesium ion
• D)S^2- = sulfide ion
• E)N^3- = nitride ion

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Definitions:

Tariff

A tax imposed by a government on imported or exported goods, often used to protect domestic industries or to generate revenue.

Consumer Surplus

The difference between what consumers are willing to pay for a good or service and the actual price they pay.

Comparative Advantage

Comparative advantage is the ability of an individual, company, or country to produce a good or service at a lower opportunity cost than competitors, underpinning international trade theory.

International Trade

The exchange of goods, services, and capital across international borders, driven by the concept of comparative advantage.