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JEE Main levelSingle correct optionDifficulty 2 of 3mt129

In the reduction of $ZnO$ with coke at about $1673 K$ , zinc (boiling point $1180 K$ ) leaves the retort as

Aa vapour that is condensed to give zinc
Bmolten metal tapped from the bottom of the furnace
Csolid metal collected in the slag
D $ZnCO X_{3}$ powder

Answer: A

ZnO + C Zn + CO

is run well above the boiling point of zinc, so the metal formed is a vapour. It is condensed (and rapidly cooled to dust or liquid) in a receiver outside the reduction zone.

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