In What Year Did the United States Enact Its First

question 52

Multiple Choice

In what year did the United States enact its first immigration quota law,setting a limit on the number of immigrants who could be admitted to the United States from each foreign country each year?

• A) 1921
• B) 1927
• C) 1931
• D) 1937
• E) 1941

---

Definitions:

LUMO

Lowest Unoccupied Molecular Orbital, the lowest energy molecular orbital that is vacant and can accept electrons.

Nodes

Points or regions in an atom or molecule where the electron density is zero, typically found in orbital diagrams.

1,3,5-hexatriene

An unsaturated hydrocarbon with the formula C6H8 featuring conjugated double bonds, used as a model compound in studying conjugation and electronic effects.

UV Spectroscopy

A type of spectroscopy that measures the absorption of ultraviolet light by a chemical substance to determine its characteristics or concentration.