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Write brief answers to the following question:
Which of the following represents a correct chemical formula? Name it.
(a). \(CaCl\)
(b). \(BiPO_4\)
(c). \(NaSO_4\)
(d). \(NaS\)
(a). \(CaCl\)
(b). \(BiPO_4\)
(c). \(NaSO_4\)
(d). \(NaS\)
(a). Valency of Ca is , and Cl is 1. Hence, the correct formula for calcium chloride is \(CaCl_2\).
(b). Valency of Bi is 3 and (\(PO_4\)), i.e. phosphate ion is also . Hence, the formula of bismuth phosphate is \(BiPO_4\).
(c). Valency of Na is and sulphate, \(SO_4\) is 2. Hence, the formula of sodium sulphate is \(Na_2SO_4\).
(d). Valency of Na is 1, and sulphur is . Hence, the formula of sodium sulphide is \(Na_2S\).
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