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Metallurgy — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryMetallurgy1 Mark
Question
Assertion(A) – Sulphide ores are concentrated by froth floatation process.
Reason (R) – Sulphide ores are preferentially wetted by oil can be separated from gangue.
(a) A and R are correct, R explains A
(b) A and R are correct, R does not explains A
(c) A is correct but R is wrong
(d) A is wrong but R is correct
✓

Answer

(a) A and R are correct, R explains A

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