Description : Humans most easily tolerate a lack of the nutrient: (A) Protein (B) Lipid (C) Iodine (D) Carbohydrate
Last Answer : Answer : D
Description : Humans most easily tolerate a lack of which of the following nutrients? (A) Protein (B) Iodine (C) Carbohydrate (D) Lipid
Last Answer : Answer : C
Description : The acidic solution of a salt produced a deep blue colour with starch iodine solution. The salt may be
Last Answer : The acidic solution of a salt produced a deep blue colour with starch iodine solution. The salt may be A. chloride B. carbonate C. acetate D. bromide
Last Answer : The acidic solution of a salt produced a deep blue colour with starch iodine solution. The salt may be A. Suphite B. Bromide C. Nitrite D. Chloride
Description : Iodine gives a red colour with (A) Starch (B) Dextrin (C) Glycogen (D) Inulin
Last Answer : C
Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green
Last Answer : (1) From brown to blueblack Explanation: Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of ... already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blueblack colour.
Description : potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green
Last Answer : (1) From brown to blueblack Explanation: The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black colour.
Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue–black (2) From brown to orange–red (3) From blue to pink (4) From pink to blue–green
Last Answer : From brown to blue–black
Last Answer : From brown to blue-black