A
C
Q.6 Using IUPAC norms, write the formulae of the
following:
(a) Tetrahydroxozincate(II)
(b) Hexaamminecobalt(III) sulphate
(c) Potassium tetrachloridopalladate(II)
(d) Potassiumtrioxalatochromate(III)
(e) Diamminedichloridoplatinum(II)
(f) Hexaammineplatinum(IV)
(g) Potassium tetracyanonickelate(II) (CBSE 2015)
(h) Tetrabromidocuprate(II)
(i) Pentaamminenitrito-O-cobalt(III)
(i) Pentaamminenitrito-N-cobalt(III)
Answers
Answer:
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The formulae are as given below:
(i) Tetrahydroxidozincate(II), [Zn(OH)
4
]
2−
(ii) Potassium tetrachloridopalladate(II), K
2
[PdCl
4
]
(iii) Diamminedichloridoplatinum(II), [Pt(NH
3
)
2
Cl
2
]
(iv) Potassium tetracyanidonickelate(II), K
2
[Ni(CN)
4
]
(v) Pentaamminenitrito-O-cobalt(III), [Co(NH
3
)
5
(ONO)]
2+
(vi) Hexaamminecobalt(III) sulphate, [Co(NH
3
)
6
](SO
4
)
3
(vii) Potassium tri(oxalato)chromate(III), K
3
[Cr(C
2
O
4
)
3
]
(viii) Hexaammineplatinum(IV), [Pt(NH
3
)
6
]
4+
(ix) Tetrabromidocuprate(II), [CuBr
4
]
2−
(x) Pentaamminenitrito-N-cobalt(III), [Co(NH
3
)
5
(NO
2
)]
Answer:
(i) [Zn(OH)4]2-
(ii) K2[PdCl4]
(iii) [Pt(NH3)2Cl2]
(iv) K2[Ni(CN)4]
(v) [Co(ONO) (NH3)5]2+
(vi) [Co(NH3)6]2 (SO4)3
(vii) K3[Cr(C2O4)3]
(viii) [Pt(NH3)6]4+
(ix) [Cu(Br)4]2-
(x) [Co[NO2)(NH3)5]2+