In Which of the Following Does the Central Atom Have

question 76

Multiple Choice

In which of the following does the central atom have 2 pairs of non-bonding electrons?

• A)O₃
• B)CO₂
• C)CO₃^2-
• D)NH₄⁺
• E)H₂S

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Definitions:

Coral Reefs

diverse underwater ecosystems held together by calcium carbonate structures secreted by corals.

Seawall

A man-made structure built along coasts to prevent erosion and flooding from the sea, often made of concrete, rocks, or other durable materials.

Jetty

An engineering structure built from the shore into a body of water to redirect current or tide, for example, to protect a harbor.

Breakwater

An offshore structure (such as a wall), typically parallel to the shore, that breaks the force of the waves to protect a shoreline or harbor.