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MODEL PAPER 2 — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 25 Marks
Question
Using IUPAC norms write the formulas for the following:
a. Tetrahydroxozincate(II)
b. Potassium tetrachloridopalladate(II)
c. Diamminedichloridoplatinum(II)
d. Potassium tetracyanonickelate(II)
e. Pentaamminenitrito-O-cobalt(III)
f. Hexaamminecobalt (III) sulphate
g. Potassium tri(oxalato) chromate(III)
h. Hexaammineplatinum(IV)
i. Tetrabromidocuprate(II)
j. Pentaamminenitrito-N-cobalt(III)
✓

Answer

a. The IUPAC name of Tetrahydroxozincate(II) is $\left[ Zn ( OH )_4\right]^{2-}$
b. The IUPAC name of Potassium tetrachloridopalladate(II) is $K _2\left[ PdCl _4\right]$
c. The IUPAC name of Diamminedichloridoplatinum(II) is $\left[ Pt \left( NH _3\right)_2 Cl _2\right]$
d. The IUPAC name of Potassium tetracyanonickelate(II) is $K_2\left[ Ni ( CN )_4\right]$
e. The IUPAC name of Pentaamminenitrito-O-cobalt(III) is $\left[ Co ( ONO )\left( NH _3\right)_5\right]^{2+}$
f. The IUPAC name of Hexaamminecobalt(III) sulphate is $\left[ Co \left( NH _3\right)_6\right]\left( SO _4\right)_3$
g. The IUPAC name of Potassium tri(oxalato)chromate(III) is $K _3\left[ Cr \left( C _2 O _4\right)_3\right]$
h. The IUPAC name of Hexaammineplatinum(IV) is $\left[ Pt \left( NH _3\right)_6\right]^{4+}$
i. The IUPAC name ofTetrabromidocuprate(II) is $\left[ Cu ( Br )_4\right]^{2-}$
j. The IUPAC name of Pentaamminenitrito-N-cobalt(III) is $\left[ Co \left( NO _2\right)\left( NH _3\right)_5\right]^{2+}$

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