When washing soda is heated below 373 K, it forms:-

Options

A. `Na_(2)CO_(3)`
B. `Na_(2)CO_(3).H_(2)O`
C. Both (A) & (B) (D)
D. `Na_(2)CO_(3). 5H_(2)O`

Answer

B

Explanation

`Na_(2)CO_(3).10H_(2)O` (washing soda) is heated below 373K, it become `Na_(2)CO_(3).H_(2)O` but heated above 373K, it become `Na_(2)CO_(3)`.