Atomic Structure - Uncertainty Principle in Chemistry
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Questions and Answers

What is the consequence of more precisely defining the position of an electron?

  • No impact on defining its velocity
  • Higher certainty in defining its position
  • More accuracy in defining its momentum
  • Less certainty in defining its velocity (correct)
  • In real-world measurements, what can cause additional uncertainties besides the inherent characteristics of the system?

  • Non-ideal and imperfect measurement processes (correct)
  • Ideal measurement processes
  • Negligible effects on macroscopic objects
  • Doubly precise measurements
  • According to the uncertainty principle, what is the relationship between the uncertainty in defining position (Δx) and the uncertainty in momentum (Δp)?

  • Δx + Δp = h/4π
  • Δx - Δp = h/4π
  • Δx * Δp > h/4π (correct)
  • Δx * Δp < h/4π
  • Why does the uncertainty principle have a negligible effect on macroscopic objects?

    <p>Because the product of uncertainties is large for macroscopic objects</p> Signup and view all the answers

    What is the value of Planck's constant (h) mentioned in the text?

    <p>-6.626 x 10^-34 Js</p> Signup and view all the answers

    Which principle is a consequence of the wave-particle duality of matter?

    <p>Uncertainty Principle</p> Signup and view all the answers

    What is the reagent used to reduce aldehydes and ketones to alkanes in the Clemmensen reduction method?

    <p>Zinc and conc. HCl</p> Signup and view all the answers

    Which reagent is involved in the Wolff-Kishner reduction to convert aldehydes and ketones to alkanes?

    <p>Hydrazine and KOH</p> Signup and view all the answers

    In the preparation of lithium dialkylcopper, what is it prepared from?

    <p>Allyl Halide</p> Signup and view all the answers

    What happens in the reaction when ether replaces a halogen atom in an alkane?

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

    At what temperature range does the reduction of aldehydes and ketones to alkanes occur using hydrogen and KOH in the Wolff-Kishner method?

    <p>150-200°C</p> Signup and view all the answers

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