Step 1: Analyzing the statements.
- Statement I: The molecules PbO, PbO₂; SnO, SnO₂; GeO, GeO₂ do not all contain amphoteric oxides. GeO is distinctly acidic, not amphoteric.
- Statement II: Glycine does not have any chiral carbon. This is true because glycine is the only amino acid that lacks a chiral center.
Step 2: Conclusion.
Statement I is incorrect, and Statement II is correct. Therefore, the correct answer is (4).