Question
$K _2 Cr _2 O _7$ में $Cr$ की उपचयन अवस्था है :
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| रन | $[ A ] / mol L ^{-1}$ | $[ B ] molL ^{-1}$ | $D / mol L ^{-1} min ^{-1}$ निर्माण का प्रारम्भिक दर |
| i | 0.1 | 0.1 | $6.0 \times 10^{-1}$ |
| ii | 0.3 | 0.2 | $7.2 \times 10^{-1}$ |
| iii | 0.3 | 0.4 | $2.88 \times 10^{-1}$ |
| iv | 0.4 | 10.1 | $2.40 \times 10^{-1}$ |