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What is the colour for a plant cell's starch grains?
The colour for a plant cell's starch grains is typically blue or black when stained with iodine solution. This is due to the formation of a complex between iodine and starch, which results in the characteristic colour change.
What element is between tellurium and the noble gas xenon?
The element between tellurium and xenon is iodine. It has an atomic number of 53.
What is the difference between Iodine bought in a pharmacy and the Iodine stain solution?
The iodine stain solution you're referring to might be Lugol's iodine. This is iodine and potassium iodide in water. The product available in a pharmacy is tincture of iodine which is iodine and potassium iodide in ethanol and water. Please see the links.
What difference in bonding between the solid state and gaseous state of iodine?
Iodine molecule has covalent bonds.
Why is magnesium iodide more covalent than magnesium chloride?
Magnesium iodide is more covalent than magnesium chloride because iodine is a larger atom with more electron-electron repulsion between its electrons, making it easier for iodine to share electrons with magnesium in a covalent bond. This results in a more even sharing of electrons between magnesium and iodine, leading to a more covalent character in magnesium iodide compared to magnesium chloride.
What is the indicator for carbohydrates?
Simple(sugar): benedicts solution. Turns bright orange. Complex(starch): iodine turns dark purple/black
What type of bio molecule is from reagents cooper ions and iodine-potassium?
what kind of bio molecule is this when mix with a benedicts reagent and biuret reagent
What is the reaction between iodine solution and ccl4?
When iodine solution is added to CCl4 (carbon tetrachloride), the iodine molecules dissolve in the CCl4 solvent because they are nonpolar molecules. This results in a solution with a distinct purple color due to the presence of iodine. However, there is no chemical reaction between the iodine and CCl4 in this case.
Why does glycogen gives red colour with iodine?
Glycogen gives a red color with iodine due to the formation of a complex between iodine and the helical structure of glycogen. This complex results in a shift in the absorption spectrum of iodine, leading to the red color observed.
What is the relationship between the thyroid and iodine?
The thyroid gland needs iodine to make thyroid hormones, which regulate metabolism and other bodily functions. Iodine deficiency can lead to thyroid problems like goiter or hypothyroidism.
Why does iodine turns colourless?
Iodine turns colorless when it reacts with starch molecules. This reaction forms a complex between iodine and starch, which results in the loss of the characteristic purple color of iodine. This color change is commonly used as an indicator for the presence of starch in a solution.
What is purpose of hydrochloric acid in iodine titration?
Hydrochloric acid is used in iodine titration to acidify the solution, which helps in the release of iodine gas from the reaction between iodide and iodine. This ensures that the reaction reaches completion and that accurate results are obtained during the titration process.
Explain why the iodine test gave such results upon prolonged heating?
explain why the iodine test gave such results upon prolonged heating
What is the reaction between arsenic trioxide and iodine?
The arsenic iii ion is oxidised to arsenic V ion and iodine is reduced to iodide.
Why does starch react with iodine solution?
Iodine (a halogen) forms a starch-iodine complex by binding with amylose coils, which results in a transfer of charge between amylose and iodine, changing the energy levels of iodine atoms, and producing a dark blue color.
Why if starch is present there is a blue-black colour?
The blue-black color seen when iodine is added to a solution containing starch is due to the formation of a complex between iodine and starch molecules. This complex is known as "iodine-starch complex," which results in the color change.
How can you show yelow liquid contains iodine?
You can add a few drops of starch solution to the yellow liquid. If the liquid turns blue-black, it indicates the presence of iodine. This reaction is due to the formation of a complex between iodine and starch that results in the blue-black color.
