2.67 Give the chemical formula for (a) chlorite ion, (b) chloride ion, (c) chlor

Question

2.67 Give the chemical formula for (a) chlorite ion, (b) chloride ion, (c) chlorate ion, (d) perchlorate ion, (e) hypoite ion. 2.68 Selenium, an element required nutritionally in trace quanti ties, forms compounds analogous to sulfur. Name the follow- ing ions: (a) SeO, (b) Se , (c) HSe , (d) HSeO3 2.69 Give the names and charges of the cation and anion in each of the following compounds: (a) CaO, (b) Na2 SO4, (c) KCIO4, (d) Fe(NO3)2, (e) Cr(OH)3 2.70 Give the names and charges of the cation and anion in each of the following compounds: (a) Cus, (b) Ag,SO, (c) Al(CIO,) (d) Co(OH)2, (e) PbCO3. 2.71 Name the following ionic compounds: (a) Li,o, (b) FeCls, (c) NaCIO, (d) CaSO,, (e) Cu(OH)2, () Fe(NO,)2 (g) Ca(CH,COO)2, (h) Cr2(CO,)3, (i) K,Cro, () (NH)sO

Explanation / Answer

2.67. The chlorite, chlorate and hypochlorite and perchlorate ions are the anions of oxyacids of chlorine where the anions of the acids contain more than one atom of which atleast one is oxygen. Chloride ion is the anionic form of chlorine. a) ClO2- b) Cl- c) ClO3- d) ClO4- e) ClO-.

2.68. Similar to sulphur oxyacids' anions, those of selenium possess same systematic nomenclature. a) Selenate b) selenide c) hydrogen selenide d) biselenite

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