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The statement that are correct among the given are

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An Intiative by Sri Chaitanya

a furnace lined with hematite is used to convert cast iron to wrought iron

Copper from low grade ores is extracted by hydrometallurgy

Collectors enhance the wettability of mineral particles during froth floatation process

in vapour phase refining metal should form a volatile compound

answer is A, B, D.

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Collectors enhance nonwettability of ore particles and froth stabilises (eg. Cresols and aniline)

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