List the Number of Sigma Bonds and Pi Bonds in a Double

question 95

Multiple Choice

List the number of sigma bonds and pi bonds in a double bond.

• A) 1 sigma, 1 pi
• B) 0 sigma, 2 pi
• C) 2 sigma, 0 pi
• D) 1 sigma, 2 pi

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Definitions:

Trench Rollback

Process by which a dense oceanic plate subducts into the asthenosphere, sinks, and tends to bend or roll away from the island arc.

Back-arc Rifting

A geological process occurring behind a volcanic arc, involving the stretching and cracking of the Earth's crust, leading to the formation of a new ocean basin.

Island Arcs

Curved chains of volcanic islands that are usually situated along the edge of a tectonic plate, created by the subduction of an oceanic plate beneath another plate.

Island Arcs

Curved chains of volcanic islands that form along the boundaries of Earth's tectonic plates, generally over a subducting plate.