Question

The raw materials of the Solvay precess are
A. `NaCI, NH_(3), "and" CaCO_(3)`
B. `NaCI, NH_(3), "and" CaO`
C. `NaCI, NH_(3), "and" CaCI_(2)`
D. `NaCI, NH_(3), "and" CO_(2)`

Answer 1

Correct Answer - A
The raw materials are a saturated solution of brine `(NaCl),NH_(3)(g)`, and limestone `(CaCO_(3))`. Carbon dioxide required in the process is generated by heating limestone in lime kiln:
`CaCO_(3)overset(1273K)toCaO+CO_(2)`