Conjugate Acids and Bases Quiz

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Questions and Answers

What is a conjugate acid according to the Brønsted–Lowry acid–base theory?

  • A compound that can receive a proton
  • An acid that has donated a proton
  • A base that has lost a hydrogen ion
  • A base with a hydrogen ion added to it (correct)

What is a conjugate base in the context of the Brønsted–Lowry theory?

  • An anion that can receive a proton
  • A base that has gained a hydrogen ion
  • The substance formed by the removal of a proton from an acid (correct)
  • A compound that can give a proton to another compound

What did Johannes Nicolaus Brønsted and Martin Lowry's theory state about acids and bases?

  • Acids are compounds that donate electrons
  • Bases are compounds that donate protons
  • Any compound that can accept a proton from another compound is a base
  • Any compound that can give a proton to another compound is an acid (correct)

What is a hydrogen cation represented by the symbol H+?

<p>A subatomic particle in the nucleus with a unit positive electrical charge (D)</p> Signup and view all the answers

Which compound can be a conjugate base depending on the acid–base theory used?

<p>The free electron in a solution (C)</p> Signup and view all the answers

Kun kaun sa sahi hai, Brønsted–Lowry acid–base theory ke anusaar?

<p>Conjugate acid ek substance hai jo proton accept karne ke baad banta hai. (C)</p> Signup and view all the answers

Brønsted–Lowry theory ke anusaar, kya hai jo kisi compound ko acid banata hai?

<p>Proton (C)</p> Signup and view all the answers

Kya ek conjugate base acidic ho sakta hai?

<p>Haan, kyunki kuch acids multiple protons de sakte hain. (D)</p> Signup and view all the answers

Kya proton ka symbol H+ hai kyunki yeh ek hydrogen cation hai?

<p>Haan, kyonki yeh hydrogen atom ka nucleus hai. (B)</p> Signup and view all the answers

Kis anion ko conjugate base ke roop mein represent kiya ja sakta hai?

<p>Oxide ion (A)</p> Signup and view all the answers

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Study Notes

Brønsted–Lowry Acid–Base Theory

  • A conjugate acid is the species that forms when a base accepts a proton (H+).
  • A conjugate base is the species that forms when an acid donates a proton (H+).
  • According to the Brønsted–Lowry theory, acids are species that donate a proton (H+), while bases are species that accept a proton (H+).
  • A hydrogen cation is represented by the symbol H+.
  • Water (H2O) can be a conjugate base depending on the acid–base theory used.
  • According to the Brønsted–Lowry theory, an acid is a species that donates a proton (H+).
  • A conjugate base can be an anion, such as Cl-, which is formed when a hydrogen chloride (HCl) donates a proton.
  • The symbol H+ represents a proton, which is a hydrogen cation.

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