It Is Known That the Sulfhydryl Group, -SH, Forms Strong

question 5

Multiple Choice

It is known that the sulfhydryl group, -SH, forms strong coordinate bonds to certain heavy metal ions. Which of the following do you expect to be the best chelating agent for heavy metal ions?

• A) HS-CH₂-CH(SH)-CH₂-OH
• B) H-SH
• C) CH₃-SH
• D) CH₃-S-S-CH₃
• E) SO₄^2-

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