Consider the following substances:
`NaCl,Ca(OH)_(2),NaHCO_(3),NH_(3),Na_(2)CO_(3),H_(2)O,Cl_(2),CO_(2),CaSO_(4).2H_(2)O,2CaSO_(4).H_(2)O,CaOCl_(2)`
(a). Which two substances combine to form beaching powder?
(b) Which four substances are utilised in the production of washing soda?
(c) Which compound represents plaster of paris?
(d) Which compound is a part of baking powder?
(e) Which compound is used as an antacid?

Explanation

(a) `Ca(OH)_(2) and Cl_(2)`
(b) NaOH, `NH_(3),H_(2)O` and `CO_(2)` (c) `2CaSO_(4).H_(2)O`
(d) `NaHCO_(3)`
(e) `NaHCO_(3)`