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Copper in Rheumatoid Arthritis Treatment
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Copper in Rheumatoid Arthritis Treatment

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Questions and Answers

What is the reaction between copper and amino acids in sweat that makes copper effective in treating rheumatoid arthritis?

  • Formation of copper complexes through reaction with amino acids (correct)
  • Formation of copper oxide
  • Electrochemical reaction between copper and sweat
  • Redox reaction between copper and oxygen

    • What is the name of the complex formed between copper(II) sulphate and glycine in aqueous solution?

  • Cu(NH2CH2CO2)2
  • Copper glycinate
  • Glycine copper(II) complex
  • Bisglycinatocopper(II)hydrate (correct)

    • What is the role of the limiting reagent in a reaction?

  • It is the reactant that is not involved in the reaction
  • It is the catalyst that speeds up the reaction
  • It is the reactant that is present in excess
  • It is the reactant that determines the amount of product formed (correct)

    • What is the purpose of calcium gluconate in pharmaceuticals?

    <p>To treat calcium deficiency</p> Signup and view all the answers

    What is the name of the indicator used in complexometric titration?

    <p>Eriochrome black T</p> Signup and view all the answers

    What is the purpose of titration experiments?

    <p>To determine the concentration of a reactant</p> Signup and view all the answers

    What is the role of oxygen in the reaction between copper and amino acids in sweat?

    <p>It is necessary for the formation of copper complexes</p> Signup and view all the answers

    What is the correct formula for glycine?

    <p>NH2CH2CO2H</p> Signup and view all the answers

    How is the percentage yield of a reaction calculated?

    <p>Actual yield / theoretical yield x 100</p> Signup and view all the answers

    What is the purpose of eriochrome black T in complexometric titration?

    <p>To act as an indicator to show the endpoint of the reaction</p> Signup and view all the answers

    What is the definition of a complex?

    <p>A molecule formed by the reaction of two or more substances</p> Signup and view all the answers

    What is the name of the compound formed by the reaction of calcium and gluconate?

    <p>Calcium gluconate</p> Signup and view all the answers

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