Select the option that correctly matches the contents of the first column with the contents of the second column.
| A. | Elements combine in fixed ratios | I. | Dalton's atomic theory |
| B. | Atoms are indivisible | II. | The same number of molecules |
| C. | Sulphate and oxalate ions are anions, whereas magnesium and | III. | Law of constant proportions |
| D. | Gram atomic mass of an element and the gram molecular mass of a compound contain | IV. | Ammonium ions are cations |
1
A - III, B - II, C - IV, D - I
2
A - III, B - I, C - IV, D - II
3
A - I, B - III, C - IV, D - II
4
A - III, B - IV, C - I, D - II