【单选题】More than 50 corticosteroid hormones are produced in the adrenal cortex by reactions that remove the side chain from the D ring of cholesterol and introduce oxygen to form keto and hydroxyl groups. Ma...
【简答题】Potassium chromate, a bright yellow solid, is produced by the reaction of solid chromite ore (FeCr 2 O 4 ) with solid potassium carbonate and gaseous oxygen at high temperature. The other products of ...