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Cobalt(II) oxide: Quiz

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Question 1: [3] It is used extensively in the ________ industry as an additive to create blue colored glazes and enamels as well as in the chemical industry for producing cobalt(II) salts.
CeramicCeramic engineeringCeramic materialsSolid

Question 2: Cobalt(II) oxide has for centuries used as a coloring agent on ________ fired pottery, the earliest examples go back to 12th century German pottery.
KilnCement kilnCharcoalOxygen







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