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These dark crystals turn into a purple vapour when heated?
Iodine
What dark crystals turn into purple vapour when they are heated?
Iodine crystals
What is the element that contains diatomic molecules and purple in vapour?
Iodine.
Voilet colour of iodine vapour is due to?
pi* to sigma* transition
How would you separate iodine crystals from mixture of iodine and sand?
we can separate them by sublimation as iodine sublimes on heating.
What is the purple substance of the iodine after heating?
It is vapour formed during the process of sublimation.
These dark crystals turn into a purple vapour when heated?
Iodine
What dark crystals turn into purple vapour when they are heated?
Iodine crystals
What happens when you burn an iodine crystal?
when iodine crysatals are heated, they turn from a solid into a gas (vapour). They start a black colour and as they gradually turn into a gas, they turn to a purple colour. At the end, there are no crystals left.
A substance that exists as a solid at ordinary temperature but changes to vapour on heating?
Iodine and ammonium salts sublime, their vapours then turn back into solids when cooled down. To see the sublimation, heat some iodine in a china dish and place a funnel upside down above the vapours (violet). The heated vapours become solid on contact with the funnel wall.
Is vapour invisible?
Whi many are, many are not (iodine vapour is quite easily seen, for example, where water vapour is not).
How will you separate iodine and salt mixture?
heat the mixture iodine will sublime collect the iodine vapour separately and cool
Why water vapour in air plays an important role in heating and cooling of air?
So when they turn into clouds the water vapour condences into tiny droplets of water and it gets bigger and bigger it falls as rain
What is the element that contains diatomic molecules and purple in vapour?
Iodine.
What black solid forms a purple vapour when heated gently?
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Voilet colour of iodine vapour is due to?
pi* to sigma* transition
How would you separate iodine crystals from mixture of iodine and sand?
we can separate them by sublimation as iodine sublimes on heating.
