Why Can't Chromium and Nickel Form a Miscible Solid Solution

question 59

Multiple Choice

Why can't chromium and nickel form a miscible solid solution over the entire composition range?

• A) The lever rule says that these two metals can't coexist in an alloy.
• B) The two metals crystallize into different cubic structures in their pure forms.
• C) The tetrahedral holes in the nickel crystal are not large enough to accommodate the chromium.
• D) The octahedral holes in the chromium crystal are not large enough to accommodate the nickel.
• E) None of the above is true.

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Definitions:

Distressing Images

Visual stimuli that evoke a strong negative emotional response, potentially leading to psychological distress or trauma.

Implosive Therapists

Therapists who utilize a technique exposing clients to intense, anxiety-provoking stimuli in a safe environment to reduce phobic or fearful responses.

Anxiety-Provoking Scenes

Situations or scenarios that trigger a high level of anxiety, often used in exposure therapy to help patients confront and reduce their fear.

Exposure Methods

Techniques in psychotherapy that involve introducing clients to feared objects or situations in a controlled manner to reduce anxiety.