Δn refers to the difference in the number of moles of gaseous reactants and the number of moles of products.
Δn = 5 − 2
= 3
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Write the reactions taking place at anode and cathode in a lead storage battery, when it is in use.
Conductivity of \( 2.5 \times 10^{-4} \) M methanoic acid solution is \( 5.25 \times 10^{-5} \) S cm\(^{-1}\).
(a) Calculate its molar conductivity.
(b) Calculate its degree of dissociation.
[Given : \( \lambda^{\circ}_{(\mathrm{H^+})} = 349.5 \) S cm\(^2\) mol\(^{-1}\) and \( \lambda^{\circ}_{(\mathrm{HCOO^-})} = 50.5 \) S cm\(^2\) mol\(^{-1}\)]
Match Column I with Column II and choose the correct option :
| Column I | Column II |
|---|---|
| a. Osmotic pressure | i. \( \Delta \mathrm{T_f} = \mathrm{K_f}\,m \) |
| b. Elevation of boiling point | ii. \( \pi = CRT \) |
| c. Depression of freezing point | iii. \( \frac{\mathrm{P_1^0 - P_1}}{\mathrm{P_1^0}} = \frac{\mathrm{W_2 \times M_1}}{\mathrm{M_2 \times W_1}} \) |
| d. Relative lowering of vapour pressure | iv. \( \Delta \mathrm{T_b} = \mathrm{K_b}\,m \) |
Draw the structures of major monohalo products in each of the following :
(a)
(b)
Explain the Finkelstein reaction.
(a) Define 'Denatured Protein' with an example.
(b) What happens when glucose reacts with HCN ? Write the reaction involved.
(c) Name the disease caused by the deficiency of Vitamin C.
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