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Caesium: Quiz

  
  
  
  
  

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Question 1: Compounds like acetate, carbonate, halides, oxide, nitrate, and sulfate are water-soluble, while double halides with ________, bismuth, cadmium, copper, iron, and lead are insoluble.
AluminiumAntimonyGoldTin

Question 2: On the other hand, it is known to form intermetallic compounds with ________, gallium, indium and thorium, which are known to be photosensitive.
GoldTinAntimonyAluminium

Question 3: Caesium fluoride is widely used in organic chemistry as a base,[65] or as a source of anhydrous ________ ion.
Sodium fluorideFluoride poisoningFluorineFluoride

Question 4: 135Cs is one of ________ of uranium which form in nuclear reactors.
Radioactive wasteIntegral Fast ReactorNuclear fission productLong-lived fission product

Question 5: It is a soft, silvery-gold ________ with a melting point of 28 °C (83 °F), which makes it one of only five metals that are liquid at or near room temperature.
Noble gasHydrogenHalogenAlkali metal

Question 6: Caesium chloride is an important source of caesium ions in a variety of applications and it crystallizes in the simple ________, which is also called the "caesium chloride structure".
Triclinic crystal systemCrystal structureMonoclinic crystal systemCubic crystal system

Question 7: The two German chemists ________ and Gustav Kirchhoff discovered it in 1860 by the newly developed method of flame spectroscopy.
Robert BunsenCaesiumChlorineAluminium

Question 8: The vast majority of caesium compounds contain the element as the cation Cs+, which binds ionically to a wide variety of ________.
Half cellElectrolyteLithium-ion batteryIon

Question 9: [86][87][88] Accumulation of caesium-137 in lakes has been a high concern after the ________.
PlutoniumChernobyl disasterChernobyl disaster effectsUranium

Question 10: [10] It has been regarded as the "strongest base", but in reality, many compounds that are not classic hydroxide bases such as n-butyllithium and ________ are stronger, and are destroyed by water.
Sodium amideSodium hydrideSodium bisulfateSodium hydroxide
















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