Transition Metal Definitions Quiz

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1. In the reaction between copper(II) ions and hydrochloric acid the reaction colour change is

  • Pale blue to green then lastly yellow
  • From pale blue to dark blue, in the reaction four of the water ligands are replaced by four ammonia ligands [Cu(NH3)4(H2O)2]2+
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2. Optical isomerism is a type of stereoisomerism where an ion

  • Multidentate
  • Can exist in two non-superimposable mirror images
  • Can form cis/trans

3. Transition metals can be used as catalysts, they do this by providing a surface on which a reaction can take place, or by

  • Changing oxidation states and binding to reactants forming intermediates as part of a chemical pathway with a lower activation energy
  • Titanium in joint replacement parts, nickel alloyed with copper for 'silver' coins etc

4. In the reaction of cobalt(II) ions and concentrated hydrocholoric acid the six water molecules are replaced by

  • Four chloride molecules
  • 6 chloride molecules

5. In the reaction of cobalt(II) ions and concentrated hydrocholoric acid the colour change is

  • Pink to blue
  • Orange to colourless

Comments

enadegs

I'm sorry about the last comment, my friend wrote it because he didn't want to accept that he got some answers wrong in this quiz. I just got 100% on this quiz and with it It helped enhance my knowledge on Transition Metals as a whole. Keep up with the resources guys!!! 

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