All of the Following Are True of Barium Sulfate as a Contrast

question 9

Multiple Choice

All of the following are true of barium sulfate as a contrast agent EXCEPT

• A)when mixed with water,it dissolves completely.
• B)its atomic number (Z)is 56.
• C)it is chemically inert.
• D)to prevent flocculation,barium sulfate is often mixed with water and sodium citrate.

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Definitions:

Ethyl Bromide

A colorless, volatile compound used primarily in organic synthesis and as a fumigant; it is an alkyl halide with the formula C2H5Br.

Major Organic Product

The primary compound that results from a chemical reaction involving organic reactants, often in higher yield compared to any side products.

Nonbonding

Pertaining to electrons in an atom or molecule that are not shared with other atoms and do not participate in bonding.

Π Molecular Orbital

A type of molecular orbital formed by the sideways overlap of atomic orbitals, crucial in understanding the bonding in conjugated systems.