Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

13. Alkenes, Alkynes, and Aromatic Compounds

Intro to Hydrocarbons

GOB Chemistry

13. Alkenes, Alkynes, and Aromatic Compounds

Intro to Hydrocarbons

Previous problemNext problem

Struggling with GOB Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following is not a valid bond rotation?

bond rotation

Previous problemNext problem

Verified step by step guidance

Step 1: Understand the concept of bond rotation. Bond rotation refers to the ability of single bonds to rotate freely, allowing different spatial arrangements of atoms. Double bonds, however, restrict rotation due to the presence of pi bonds.

Step 2: Analyze the first image. It shows a simple alkane chain undergoing rotation. Since alkanes have single bonds, this rotation is valid.

Step 3: Examine the second image. It depicts a molecule with a double bond undergoing rotation. Double bonds do not allow rotation due to the pi bond, making this rotation invalid.

Step 4: Look at the third image. It shows a molecule with single bonds undergoing rotation. The stereochemistry changes, but single bonds allow rotation, so this is valid.

Step 5: Review the fourth image. It involves a molecule with a double bond and a stereochemical change. Double bonds restrict rotation, making this rotation invalid.