Which Statement About the Most Stable Lewis Structures of Cyanamide

question 13

Multiple Choice

Which statement about the most stable Lewis structures of cyanamide (H₂NCN) and its structural isomer (HNCNH) is not correct?

• A)Both have 16 valence electrons.
• B)One has a triple bond.
• C)One has two double bonds.
• D)All atoms in both structures have formal charges of zero.
• E)Cyanamide has an equivalent resonance structure with two double bonds.

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Definitions:

Difference Threshold

The smallest amount that a given stimulus must be increased or decreased so that an individual can detect the difference.

Standard Stimulus

A specific stimulus used as a reference point in psychological experiments to measure reactions or perceptions.

Weber's Law

A principle describing the smallest difference in stimulus intensity that is detectable, typically proportional to the intensity of the original stimulus.

Difference Threshold

The smallest change in stimulation that can be detected 50% of the time by a participant.