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In a reaction between A and B, the initial rate of reaction (r0) was measured for different initial concentrations of A and B as given below:
| A/mol L−1 | 0.20 | 0.20 | 0.40 |
| B/mol L−1 | 0.30 | 0.10 | 0.05 |
| r0/mol L−1 s−1 | 5.07 × 10−5 | 5.07 × 10−5 | 1.43 × 10−4 |
What is the order of the reaction with respect to A and B?
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Why is adsorption always exothermic?
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Silver atom has completely filled d orbitals (4d10) in its ground state. How can you say that it is a transition element?
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Explain giving reasons:
Transition metals and many of their compounds show paramagnetic behaviour.
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Write down the electronic configuration of Cr3+.
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Write down the electronic configuration of Pm3+.
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Write down the electronic configuration of Cu+.
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Write down the electronic configuration of Ce4+.
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Write down the electronic configuration of Co2+.
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Write down the electronic configuration of Lu2+.
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Write down the electronic configuration of Mn2+.
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Write down the electronic configuration of Th4+.
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Explain the following, giving two examples:
Coordination entity
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What is meant by unidentate ligand?
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What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g) is passed through this solution?
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Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
K3[Co(C2O4)3]
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Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
cis-[CrCl2(en)2]Cl
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Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
(NH4)2[CoF4]
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Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
[Mn(H2O)6]SO4
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Amongst the following, the most stable complex is:
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