MCQ
Identify the compound that exhibits tautomerism :
- A$2-$ Butene
- BLactic acid
- C$2-$ Pentanone
- DPhenol
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$Cr\, | \,Cr^{3+}_{(0.1\,M)}\,||\, Fe^{2+}_{(0.01\, M)}\,|\, Fe$ is ......... $V$
$l$ $m$