| A. | Baking soda | I. | \[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\] |
| B. | Washing soda | II. | \[CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O\] |
| C. | Plaster of paris | III. | \[CaS{{O}_{4}}.2{{H}_{2}}O\] |
| D. | Gypsum | IV. | \[NaHC{{O}_{3}}\] |
A) A - IV, B - I, C - II, D - III
B) A - III, B - I, C - II, D - IV
C) A - IV, B - II, C - I, D - III
D) A - I, B - IV, C - II, D - III
E) None of these
Correct Answer: A
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