Question
Write the formulas for the following coordination compounds:
a. Tetraammineaquachloridocobalt(III) chloride
b. Potassium tetrahydroxidozincate(II)
c. Potassium trioxalatoaluminate(III)
d. Dichloridobis(ethane-1, 2-diamine)cobalt(III)
e. Tetracarbonylnickel(0)

Answer

a. The formula of Tetraammineaquachloridocobalt(III) chloride is $\left[ Co \left( NH _3\right)_4\left( H _2 O \right) Cl ^2\right) Cl _2$.
b. The formula of Potassium tetrahydroxidozincate(II) is $K _2\left[ Zn ( OH )_4\right]$.
c. The formula of potassium trioxalatoaluminate(III) is $K _3\left[ Al \left( C _2 O _4\right)_3\right]$.
d. The formula of Dichloridobis(ethane-1, 2-diamine)cobalt(III) is $\left[ CoCl _2( en )^2\right]^{+}$.
e. The formula of Tetracarbonylnickel $(0)$ is $\left[ Ni ( CO )_4\right]$.

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Similar questions

Match the complex ions given in Column $I$ with the colours given in Column $II$ and assign the correct code:
 
Column $I ($Complex ion$)$
 
Column $II ($Colour$)$
$a.$ $[Co(NH_3)_6]^{3+}$ $1.$
Violet
$b.$ $[Ti(H_2O)_6]^{3+}$ $2.$
Green
$c.$ $[Ni(H_2O)_6]^{2+}$ $3.$
Pale blue
$d.$ $[Ni(H_2O)_4(en)]^{2+} (aq)$ $4.$
Yellowish orange
 
 
$5.$
Blue
Code:
Explain the IUPAC method of nomenclature coordination compounds with examples.
What is the difference between osmosis and diffusion?
Write the IUPAC names of the following coordination compounds:
i. $\left[ Co \left( NH _3\right) 6\right] Cl _3$
ii. $\left[ Co \left( NH _3\right)_5 Cl \right] Cl _2$
iii. $K_3\left[ Fe ( CN )_6\right]$
iv. $K_3\left[ Fe \left( C _2 O _4\right)_3\right]$
v. $K_2\left[P_{d C l}^4\right]$
vi. $\left[ Pt \left( NH _3\right)_2 Cl \left( NH _2 CH _3\right)\right] Cl$
(i) Define the order of a reaction.
(ii) Explain the effect of concentration of reactant on the rate constant.
(iii) For a first order reaction, if the rate constant at 500 K and 600 K are $0.03 s^{-1}$ and $0.06 s^{-1}$ respectively, then calculate the activation energy.
$
\left[R=8.314 JK^{-1} mol^{-1}, \log 2=0.3010\right]
$
Answer the following question:
$g$ of benzoic acid $(C_6H_5COOH)$ dissolved in $25g$ of benzene shows a depression in freezing point equal to $1.62K.$ Molal depression constant for benzene is $4.9K \ kg\ mol^{-1}.$ What is the percentage association of acid if it forms dimer in solution$?$
  1. Account for the following:
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  2. $Zn, Cd$ and $Hg$ are soft metals.
  3. $E^o$ value for the $Mn^{3+}/Mn^{2+}$ couple is highly
positive $(+ 1·57 V)$ as compared to $Cr^{3+}/Cr^{2+}.​​​​​​​$​​​​​​​
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$(i). $Illustrate the following reactions giving suitable example in each case:
$a.$ Ammonolysis
$b.$ Coupling reaction
$c.$ Acetylation of amines
$(ii).$ Describe Hinsberg method for the identification of primary, secondary and tertiary amines. Also, write the chemical equations of the reactions involved.
A colorless substance ' $A$ ' $\left( C _6 H _7 N\right)$ is sparingly soluble in water and gives a water-soluble compound ' B ' on treating with a mineral acid. On reacting with CHCl 3 and alcoholic potash ' A ' produces an obnoxious smell due to the formation of compound ' C '. The reaction of ' A ' with benzene sulphonyl chloride gives compound ' D ' which is soluble in alkali. With $NaNO _2$ and HCl , ' A ' forms compound ' E ' which reacts with phenol in alkaline medium to give an orange dye ' $F$ '. Identify compounds ' $A$ ' to ' $F$ '.
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  3. Zirconium (Z = 40) and Hafnium (Z = 72) have almost similar atomic radii.