Given the Accompanying Partial Activity Series,which Element(s)can Reduce Zinc Ion $\rightarrow$

question 26

Multiple Choice

Given the accompanying partial activity series,which element(s) can reduce zinc ion to elemental zinc? Zn $\rightarrow$ Zn²⁺ + 2e^-
Fe $\rightarrow$ Fe²⁺ + 2e^-
Co $\rightarrow$ Co²⁺ + 2e^-
Ni $\rightarrow$ Ni²⁺ + 2e^-
Cu $\rightarrow$ Cu²⁺ + 2e^-

• A) nickel
• B) iron
• C) copper
• D) nickel,iron,and copper
• E) None of these elements can reduce zinc ion to elemental zinc.

---

Definitions:

Polygraph

An instrument that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a subject is asked questions, purported to indicate lying or truthfulness.

Job Applicants

Individuals who apply for a position of employment, offering their skills and qualifications for consideration by an employer.

Sweepstakes

A type of contest or promotion where prizes are awarded to participants selected by random drawing.

False Positives

Instances where a test incorrectly indicates the presence of a condition or attribute.