no.
Iodine crystals are a pure substance.
Iodine is a chemical element; not a mixture, not a compound.
One method to separate iodine crystals from a mixture of iodine and sand is by using sublimation. Heat the mixture, and the iodine will sublimate (turn into gas) leaving the sand behind. The iodine gas can then be collected and cooled to form iodine crystals.
Iodine crystals can be removed from a mixture by sublimation, where the crystals are heated to turn directly into vapour without melting. The vapour can then be condensed back into solid iodine crystals. This technique allows for the separation of iodine from other components in the mixture.
Tincture of iodine is a homogeneous solution.
Iodine is an element, so a pure substance, not a mixture, (so even not homogeneous).
By heating it at low temperatures.
Iodine crystals are solid, crystalline form of elemental iodine, while iodine solution is a liquid mixture of elemental iodine and either alcohol or water. Iodine crystals are typically used for storage and long-term preservation, while iodine solution is commonly used for disinfection and medical purposes.
By heating it at low temperatures.
sewing and grainnize
They are homogeneous. But they are not a mixture, so they are a pure substance
Iodine crystals can be separated from diamond by using sublimation. Iodine can be sublimated at a low temperature, converting it from a solid to a gas without melting. This allows the iodine to be collected as a gas, leaving behind the diamond.