In a Two-Component Alloy,the More Abundant Metal Can Be Thought

question 71

Multiple Choice

In a two-component alloy,the more abundant metal can be thought of as the solvent while the less abundant metal can be thought of as the solute.Which of the following is an explanation of why an alloy is often harder than either of the pure elements?
I.In a homogenous substitutional alloy,the solute atoms distort the crystal structure a bit,making it hard for atoms to slip past one another.
II.In a heterogeneous alloy,small regions rich in the solute atom can disrupt the crystal lattice,making it hard for atoms to slip past one another.
III.When solute atoms occupy interstices,they can prevent the atoms in the crystal structure from slipping past one another.

• A)only I
• B)only II
• C)only III
• D)I or II
• E)I,II,or III

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Definitions:

Central Bank

The primary monetary authority of a country or region, responsible for regulating the money supply, issuing currency, and managing interest rates to ensure economic stability.

Fiscal Policy

Government adjustments in spending levels and tax rates to monitor and influence a nation's economy.

Lag

The time delay between the occurrence of one event and the occurrence of another event that is directly related to the first.

Monetary Policy

Actions by a central bank to influence the amount of money and credit in the economy to achieve macroeconomic objectives like controlling inflation.