The Oxidation Numbers of P, S, and Cl in H₂PO₂^-

question 111

Multiple Choice

The oxidation numbers of P, S, and Cl in H₂PO₂^-, H₂S, and KClO₄ are, respectively

• A)−1, −1, +3.
• B)−1, −2, +7.
• C)+1, −2, +7.
• D)−1, −2, +3.
• E)+1, +2, +7.

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Definitions:

Photoreceptor Cells

Specialized cells in the retina of the eye that respond to light, enabling vision.

Innermost Tunic

The deepest layer of an organ or structure, often referring to the inner layer of blood vessels that is in direct contact with the blood.

Pupil

The opening in the center of the iris of the eye, through which light enters the eye.

Photoreceptor Cells

Specialized neurons located in the retina that are capable of converting light into signals that can be interpreted by the brain as vision.