Which Incorrectly Shows the Main Product of Reaction of the Indicated

question 36

Multiple Choice

Which incorrectly shows the main product of reaction of the indicated alkali metal with excess oxygen?

• A) Li/Li₂O
• B) Na/Na₂O₂
• C) K/K₂O₂
• D) Rb/RbO₂
• E) Cs/CsO₂

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Definitions:

Annual Depreciation

The portion of the cost of a fixed asset that is expensed each year over its useful life.

Payback Period

The time it takes for an investment to generate an amount of income or cash equivalent to the cost of the investment, used as a measure of the investment's risk and profitability.

Discount Rate

The interest rate used to discount future cash flows to their present value, often used in investment appraisal and capital budgeting.

Net Present Value

A financial metric that calculates the difference between the present value of cash inflows and the present value of cash outflows over a period.