`underset(("Sulphide ore")) (A) + NaCN overset ("Air") hArr underset(("Complex"
Channel: Doubtnut
Date: 2020-07-26

`underset(("Sulphide ore")) (A) + NaCN overset ("Air") hArr underset(("Complex"))(B) +Na_(2) S overset(O_(2))rarr C`.  `A` is.