The Index of Hydrogen Deficiency for C₇H₆Br₄O₂ Is 3

question 44

True/False

The index of hydrogen deficiency for C₇H₆Br₄O₂ is 3.

---

Definitions:

Project Head Start

A scheme in the US offering extensive early childhood education, health care, nutritional support, and engagement opportunities for parents of families with low income.

Harold Stevenson

A psychologist known for his cross-cultural research in academic achievement and intelligence, particularly comparing the educational performances of children in the United States, China, and Japan.

Math Performance

The ability and efficiency in solving mathematical problems, reflecting one's proficiency in mathematics.

American Students

Refers to students who are studying or have studied in educational institutions in the United States.