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Q: Why does iodine exist as a solid crystal which sublimes?
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Why iodine exist in solid state but it is a gas?

Iodine exists in solid state under normal atmospheric conditions due to its low boiling point of 184 degrees Celsius. When heated, iodine sublimes directly from solid to gas without melting, which is why it can exist as a gas.


An element that can be a black solid or a colorless crystal?

Iodine is an element that can exist as a black solid or colorless crystal.


When you warm the test tube crystal of iodine what is the result?

When you warm the test tube crystal of iodine, it sublimes from a solid to a purple gas, leaving a yellow residue in the test tube.


What solid sublimes on heating?

Iodine is a solid that sublimes on heating. It changes directly from a solid to a gas without passing through a liquid state.


How can crystal of iodine and charcoal could be separated?

Iodine crystals and charcoal can be separated by sublimation. When iodine is heated, it sublimes directly from solid to gas without passing through the liquid phase, leaving behind the charcoal. The iodine vapor can then be collected and cooled to form solid iodine crystals again.


Iodine liquid or solid?

Iodine is a solid at room temperature and pressure. It sublimes directly from a solid to a purple vapor without melting.


How can you separate iodine mixed with zinc oxide?

One way to separate iodine from zinc oxide is through sublimation. Since iodine sublimes at a lower temperature than zinc oxide, you can heat the mixture to a temperature where iodine sublimes, and then collect the iodine vapors while leaving behind the zinc oxide.


Can iodine ever be in the liquid state or it just sublimes on heating?

Iodine can exist in the liquid state under specific conditions of temperature and pressure. When heated, solid iodine can sublime directly into a vapor without passing through the liquid phase, a process known as sublimation.


Which halogen sublimes to violet vapours?

iodine is the only halogen in solid form. so it is the halogen which gives violet vapours on sublimation...


What is appearance crystal iodine?

Crystalline iodine appears as shiny, bluish-black crystals with a metallic luster. It has a distinct odor and sublimes (changes from a solid to a gas) easily at room temperature.


What is the equation for iodine being heated?

When solid iodine is heated, it sublimes directly to form a purple vapor. The chemical equation for this process is: 2I2(s) -> 2I2(g)


Does solid iodine give blue gas on sublimation?

Yes, solid iodine sublimes directly to a purple vapor, not blue.