Which of the Following Is True About Rubber Stamps

question 57

Multiple Choice

Which of the following is true about rubber stamps?

• A) They are expressions used by habit every time a certain type of situation occurs.
• B) They are expressions developed to be used in special situations.
• C) They are expressions created to suit every individual reader.
• D) They are expressions developed to be specifically used in emails.
• E) They are expressions created by a writer for personal use in different circumstances.

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Definitions:

1,3-Butadiene

An elementary conjugated diene with a molecular composition of C4H6, employed in the manufacture of synthetic rubber as a monomer.

HOMO

Highest Occupied Molecular Orbital, the topmost energy level occupied by electrons in a molecule under normal conditions.

Allyl Anion

A negatively charged allyl group (a three-carbon chain with a double bond) that acts as a nucleophile in organic reactions.

LUMO

Lowest Unoccupied Molecular Orbital, which is the lowest energy molecular orbital that is currently unoccupied by electrons and can accept an electron.