Question
Classify carbohydrates and also give examples of each.

Answer

self

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The experimental data for decomposition of $\ce{N2O5}$
$[\ce{2N2O5 \rightarrow 4NO2 + O2}]$
in gas phase at $318K$ are given below:
$t/s$ $0$ $400$ $800$ $1200$ $1600$ $2000$ $2400$ $2800$ $3200$
$10^2 \times [\ce{N2O5}]/mol \ L^{-1}$ $1.63$ $1.36$ $1.14$ $0.93$ $0.78$ $0.64$ $0.53$ $0.43$ $0.35$
  1. Plot $[\ce{N2O5}]$ against $t$.
  2. Find the half-life period for the reaction.
  3. Draw a graph between $\log[\ce{N2O5}]$ and $t$.
  4. What is the rate law?
  5. Calculate the rate constant.
  6. Calculate the half$-$life period from $k$ and compare it with $(ii)$.
Explain the following terms with suitable examples:
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(a) What is van't Hoff factor? Explain.
(b) Write the equation of molecular number properties including van't Hoff factor.
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(e) What are any two good sources of vitamin A?
(f) What is anomeric carbon?
(g) What is the difference between a glycosidic linkage and a peptide linkage?
Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.
What is called a battery? Explain its characteristics and describe dry cell and mercury cell.
How many mL of 0.1 M HCl are required to react completely with 1 g mixture of $Na _2 CO _3$ and $NaHCO _3$ containing equimolar amounts of both?
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  2. $KMnO_4$ from $K_2MnO_{4.}$
  3. Calomel from corrosive sublimate.
  1. What is meant by lanthanoid contraction? What effect does it have on the chemistry of the elements which follow lanthanoids?
On the basis of crystal theory, octahedral in the presence of strong field ligand and weak field ligand. Explain the difference in crystal field splitting.