During the qualitative analysis of \(SO _3^{2-}\) using dilute \(H _2 SO _4, SO _2\) gas is evolved which turns \(K _2 C…
Q1
During the qualitative analysis of \(SO _3^{2-}\) using dilute \(H _2 SO _4, SO _2\) gas is evolved which turns \(K _2 Cr _2 O _7\) solution (acidified with dilute \(H _2 SO _4\) ):
[JEE Main 2023, 30 Jan (Shift 1)]
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