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Saponification: Quiz

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Question 1: If those heavy metals react with ________ in the oil medium that binds the pigments together, soaps may form in a paint layer that can then migrate upwards to the painting's surface.
Butyric acidLinoleic acidFatty acidLipid

Question 2: ________ and animal fats are fatty esters in the form of triglycerides.
Vegetable fats and oilsCooking oilButterOlive oil

Question 3: Saponification is the hydrolysis of an ester under basic conditions to form an ________ and the salt of a carboxylic acid (carboxylates).
EthanolAlcoholAlkaneAldehyde

Question 4: If NaOH is used a hard soap is formed, whereas when ________ (KOH) is used, a soft soap is formed.
Potassium chloridePotassium permanganatePotassium cyanidePotassium hydroxide

Question 5: Fires involving ________ and oils (classified as class K or Class F) burn hotter than flammable liquids, rendering a standard class B extinguisher ineffective.
SoybeanOlive oilCooking oilMargarine

Question 6: ________ (NaOH) is a caustic base.
Sodium hypochloriteSodium sulfateSodium carbonateSodium hydroxide

Question 7: Saponification can occur in ________ over time, causing visible damage and deformation.
Oil paintingCanvasLeonardo da VinciMedia (arts)

Question 8: The alkali breaks the ester bond and releases the ________ salt and glycerol.
Fatty acidButyric acidLipidLinoleic acid

Question 9: The ground layer or paint layers of oil paintings commonly contain heavy metals in pigments, such as lead white, red lead, or ________.
Zinc oxide4-Methylbenzylidene camphorZinc chlorideTitanium dioxide

Question 10: Saponification is commonly used to refer to the reaction of a metallic alkali (base) with a ________ or oil to form soap.
FatFatty acidLipidTrans fat







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