Write a Balanced Half-Reaction for the Reduction of CrO₄^2-(aq)to Cr(OH)₃(s)in $\to$

question 67

Multiple Choice

Write a balanced half-reaction for the reduction of CrO₄^2-(aq) to Cr(OH) ₃(s) in a basic solution.

• A) CrO₄^2-(aq)+ 3 OH^-(aq)+ 3 e^- \(\to\)Cr(O
• H)₃(s)+ 2 O₂(g)
• B) CrO₄^2-(aq)+ 3 H⁺(aq)+ 3 e^- \(\to\) Cr(O
• H)₃(s)
• C) CrO₄^2-(aq)+ 3 H⁺(aq)\(\to\)Cr(O
• H)₃(s)+ 2 e^-
• D) CrO₄^2-(aq)+ 4 H₂O( )+ 3 e^- \(\to\) Cr(O
• H)₃(s)+ 5 OH^-(aq)
• E) CrO₄^2-(aq)+ 3 OH^-(aq)\(\to\) Cr(O
• H)₃(s)+ 2 O₂(g)

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Definitions:

Superego

In psychoanalytic theory, the part of the psyche that operates as a moral conscience.

Castration Anxiety

A concept in psychoanalytic theory describing a child's fear of bodily loss or damage, particularly the fear of losing the genitals, related to feelings of parental authority and sexual identity.

Oedipus Complex

A Freudian theory proposing a child's unconscious sexual desire for the opposite-sex parent and jealousy towards the same-sex parent.

Phallic Stage

In psychoanalytic theory, a developmental stage in early childhood focusing on the genitals and the differences between males and females.