Question
Discuss aldol condensation in detail.

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Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reaction involved.
Discuss the different chemical properties of amines.
Assign reasons for the following:
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  2. The transition metals and many of their compounds act as good catalyst.
  3. From element to element the actinoid contraction is greater than the lanthanoid contraction.
  4. The E0 value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+.
  5. Scandium (Z = 21) does not exhibit variable oxidation states and yet it is regarded as a transition element.
During nuclear explosion, one of the products is 90Sr with half-life of 28.1 years. If $1 \mu g$ of 90Sr was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically.
The experimental data for decomposition of N2O5
[2N2O5 → 4NO2 + O2]
in gas phase at 318K are given below:
t/s 0 400 800 1200 1600 2000 2400 2800 3200
102 × [N2O5]/mol L-1 1.63 1.36 1.14 0.93 0.78 0.64 0.53 0.43 0.35
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  1. Complete the following chemical equations:
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  1. Explain the following observations:
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What is crystal field splitting energy? How does the magnitude of $\Delta_0$ decide the actual configuration of d-orbitals in a coordination entity?
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Sc Ti V Cr Mn Fe Co Ni Cu Zn

Answer the following:

  1. Which element has the highest m.p. and why?
  2. Which element is a strong oxidising agent in +3 oxidation state and why?
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  1. Define the following terms:
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