The Reciprocal of the Pitch in Inches

question 36

Multiple Choice

The reciprocal of the pitch in inches.

• A) Threads per inch
• B) Minor diameter
• C) Major diameter
• D) Vanish
• E) none of the above

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Definitions:

Cyclobutadiene

A highly reactive, four-carbon cyclic diene that is unstable at room temperature, interesting for its peculiar electronic properties and symmetry.

1,3-Butadiene

A simple conjugated diene with the formula C4H6, important as a monomer in producing synthetic rubber.

AntiAromatic

Compounds that possess cyclic, conjugated systems with 4n π electrons, which destabilize the molecule and make it less stable than expected.

NonAromatic

A compound that does not fulfill the criteria for aromaticity, lacking a continuous ring of p-orbitals.