Which Has Resonance Structures

question 1

Multiple Choice

Which has resonance structures?

• A) CH₄
• B) CH₃CH₂COO⁻
• C) CH₃CH₂CH₃
• D) CH₃OH
• E) CH₃NH₃⁺

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Definitions:

Overload Heaters

Protective devices installed in motor starters to prevent motors from overheating by mimicking the thermal characteristics of the motor under overload conditions.

Inverse Time-Delay

A characteristic of certain protective devices where the time taken to interrupt the current decreases as the magnitude of the fault current increases.

Melting Alloy

A mixture of two or more metals melted together to create a new material with specific desirable properties.

Bimetallic

Pertaining to an object made of two different metals bonded together, often used in temperature sensing applications.