What Is the Oxidation Number of Hydrogen in H₂O₂

question 67

Multiple Choice

What is the oxidation number of hydrogen in H₂O₂?

• A) +2
• B) +1
• C) 0

---

Definitions:

Decomposer

Organisms, typically bacteria and fungi, that break down dead or decaying organisms, thereby playing a key role in the nutrient cycle.

Saccharomyces

A genus of fungi that includes many yeast species, widely used in baking, brewing, and wine-making.

Arbuscular Mycorrhizae

A type of symbiotic relationship between plants and fungi, where the fungus invades the plant roots to enhance nutrient and water absorption.

Endomycorrhizae

A type of mycorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant, enhancing nutrient exchange.