Question

Explain the role of funnel in this process
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Answer 1

Answer:

A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. ... Dropper funnels, also called dropping funnels or tap funnels, have a tap to allow the controlled release of a liquid

Explanation:

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Answer 2

Answer:

Take some ammonium chloride powder on a china dish. Take an inverted funnel and put a cotton plug on the end of the funnel so that vapours do not escape. Set up the apparatus as shown. Heat the dish with a burner. Solid ammonium chloride changes into vapours. Which when come in contact with walls of funnel gets cold and changes to solid and gets deposited there.