Question
Explain the IUPAC method of nomenclature coordination compounds with examples.
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Answer
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Draw the structure of $[Co(NH_{3})_{6}]^{3+}$ and $[Ni(CO)_{4}]$. Write the hybridisation of atomic orbital of transition metal in each case.
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Describe the preparation of potassium permanganate from pyrolusite ore. Write balanced chemical equation for one reaction to show the oxidizing nature of potassium permanganate.
Describe the preparation of potassium permanganate from pyrolusite ore. Write balanced chemical equation for one reaction to show the oxidizing nature of potassium permanganate.
Decinormal solution of NaCl developed an osmotic pressure of 4.6 atm at 300 K. Calculate the degree of dissociation.
Explain the stability of the highest oxidation states of the 3d series.
Match the graph given in Column I with the order of reaction given in Column II. More than one item in Column I may link to the same item of Column II.
Column I | Column II | ||
(i) |  | ||
(ii) |  | (a) | Ist order |
(iii) |  | (b) | Zero order |
(iv) |  |
Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers:
i. $k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]$
ii. $\left[ Co ( en )_3\right] Cl _3$
iii. $\left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]$
iv. $\left[ Pt \left( NH _3\left( H _2 O \right) Cl _2\right.\right.$
→i. $k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]$
ii. $\left[ Co ( en )_3\right] Cl _3$
iii. $\left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]$
iv. $\left[ Pt \left( NH _3\left( H _2 O \right) Cl _2\right.\right.$
Explain the following terms:
(i) Coagulation
(ii) Electrophoresis
(iii) Tyndall Effect
(iv) Hardy Schulze's Rule
(i) Coagulation
(ii) Electrophoresis
(iii) Tyndall Effect
(iv) Hardy Schulze's Rule
Answer the following question:
The graphical representation of vapour pressures of two component system as a function of composition is given alongside. By graphic inspection, answer the following questions:
→The graphical representation of vapour pressures of two component system as a function of composition is given alongside. By graphic inspection, answer the following questions:
- Are the A-B interactions weaker, stronger or of the same magnitude as A-A and B-B?
- Name the type of deviation shown by this system from Raoult’s law.
- Predict the sign of $\Delta_\text{mix}\text{H}$ for this system.
- Predict the sign of $\Delta_\text{mix}\text{H}$ for this system.
- Give an example of such a system.
- What type of azeotrope will this system form, if possible?
→
The rate constant for the first order decomposition of H2O2 is given by the following equation:
log k = 14.34 – 1.25 × 104K/T
Calculate Ea for this reaction and at what temperature will its half-period be 256 minutes?
log k = 14.34 – 1.25 × 104K/T
Calculate Ea for this reaction and at what temperature will its half-period be 256 minutes?