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Twelfth Grade (Grade 12) Bonds and Mixing Questions

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Grade 12 Bonds and Mixing
Grade 12 Bonds and Mixing
Grade 12 Bonds and Mixing
Which of the following parameters increase with a decrease in the size of a bond pair of electrons?
  1. Electronegativity
  2. Ionization potential
  3. Hydration energy
  4. Solvation energy
Grade 12 Bonds and Mixing
Grade 12 Bonds and Mixing
Grade 12 Bonds and Mixing
The sugar in a crystal lab is a
  1. solute
  2. solvent
  3. supersaturate
  4. atom
Grade 12 Bonds and Mixing
Grade 12 Bonds and Mixing
Which of the following is an example of column chromatography?
  1. Ion-exchange chromatography
  2. Gas-solid chromatography
  3. Thin layer chromatography
  4. Gas-liquid chromatography
Grade 12 Bonds and Mixing
What is the stationary phase of paper chromatography?
  1. Thin film of liquid supported on a paper
  2. Liquid phase impregnated on an inert solid support
  3. Thin layer of solid adsorbent
  4. Solid adsorbents like silica and alumina
Grade 12 Bonds and Mixing
How many [math]Pi[/math] bonds are present in an acetylene molecule?
  1. one [math]Pi[/math] bonds
  2. two [math]Pi[/math] bonds
  3. three [math]Pi[/math] bonds
  4. four [math]Pi[/math] bonds
Grade 12 Bonds and Mixing
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