Silicates and Molecular Geometry Quiz
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Questions and Answers

Which of the following represents the correct increasing order of bond angles in OF2, OCl2, ClO2, and H2O?

  • OF2 < Cl2O < H2O < ClO2 (correct)
  • OF2 < H2O < OCl2 < ClO2
  • ClO2 < Cl2O < OF2 < H2O
  • H2O < F2O < Cl2O < ClO2
  • In the balanced equation BaCrO4 + KI + HCl -> BaCl2 + I2 + KCl + CrCl3 + H2O, the coefficients of BaCrO4, KI, CrCl3, and KCl are respectively:

  • 6, 2, 6, 6
  • 2, 6, 6, 2
  • 2, 6, 2, 6
  • 6, 2, 2, 6 (correct)
  • Which metal exhibits the highest chemical reactivity based on the given data?

  • K
  • Li (correct)
  • Na
  • Rb
  • Which alkali metal has the highest ionization enthalpy?

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

    In the reaction 2HI(g) -> H2(g) + I2(g), if the rate constant for decomposition on a metal surface is 0.06 Ms^-1, how long does it take for the concentration of HI to decrease from 1.50 M to 0.30 M?

    <p>20 s</p> Signup and view all the answers

    Among BaCrO4, KI, CrCl3, and KCl in the reaction BaCrO4 + KI + HCl -> BaCl2 + I2 + KCl + CrCl3 + H2O, which compound has the coefficient of 6?

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

    What is the minimum uncertainty in the velocity of a particle with a mass of 1.1 x 10^-28 kg if its uncertainty in position is 3 x 10^-10 cm?

    <p>$1.6 \times 10^6$ ms^-1</p> Signup and view all the answers

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