PRELIMS IN ORG CHEM

1. Which bond is most likely to be formed in an organic molecule with carbon and hydrogen?

2. How do the four valence electrons of carbon affect chemical bonding?

1.       How does the presence of the lone pair of nitrogen in ammonia (NH₃) affect the bond in organic molecules?
I.          It creates trigonal pyramidal shape

II.       It takes up space and causes repulsion

III.     It alters the geometry around the atom

IV.    It influences the shape and bond angles in a molecule

    Which molecule has a single bond?

Which molecule is weaker and more reactive?

What significant experiment did Friedrich Wöhler perform that changed the course of organic chemistry?

The concept of "vitalism" in early organic chemistry was the belief that:

Which important organic compound was synthesized by Wöhler, disproving the concept of vitalism?

In the history of organic chemistry, the discovery of the "benzene ring" led to a greater understanding of:

Which of these early organic chemistry experiments demonstrated that organic compounds could be synthesized artificially, challenging the prevailing theories of the time?