Presence of Bromine Produces M⁺

question 108

Multiple Choice

Presence of bromine produces M^{+ .} and (M+2) ^{+ .} peaks of equal intensity on a mass spectrum because:

• A). ⁸¹Br isotope has higher natural abundance than ⁷⁹Br isotope
• B). ⁷⁹Br and ⁸¹Br isotopes have almost equal natural abundance
• C). ⁷⁹Br isotope has higher natural abundance than ⁸¹Br isotope
• D) none of these

---

Definitions:

Relevant Range

The span of operations in which the beliefs regarding variable and fixed cost dynamics are accurate.

Product Costs

Costs directly associated with the production of goods, including direct labor, materials, and manufacturing overhead.

Period Costs

Costs that are expensed in the period in which they are incurred, not directly tied to the production process.

Contribution Margin

The difference between sales revenue and variable costs, showing how much revenue contributes towards covering fixed costs and profit.