| A. | Hydrogen in \[{{H}_{2}}O\] | (I) | 38.1% |
| B. | Oxygen in \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] | (II) | 15.8% |
| C. | Potassium in \[KMn{{O}_{4}}\] | (III) | 11.11% |
| D. | Aluminum in \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\] | (IV) | 24.68% |
A) A - II, B - I, C - II, D - IV
B) A - III, B - I, C - IV, D - II
C) A - III, B - II, C - IV, D - I
D) A - II, B - III, C - IV, D - I
E) None of these
Correct Answer: B
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