d and f Block Elements Part 2
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Question : 56 of 100
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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 ):
[30-Jan-2023 Shift 1]
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