Question
Explain the open chain structure of glucose.
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Match the terms given in Column I with the units given in Column II.
| | Column I | | Column II |
| i. | ∧m | a. | S cm-1 |
| ii. | ECell | b. | m- |
| iii. | K | c. | S cm2 mol-1 |
| iv. | G* | d. | V |
Give reasons for the following:
On electrolysis in acidic solution amino acids migrate towards cathode, while in alkaline solution these migrate towards anode.
On electrolysis in acidic solution amino acids migrate towards cathode, while in alkaline solution these migrate towards anode.
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Explain the limitations of valence bound theory.
Describe the structure of a fuel cell. Draw labelled diagram of a structure of fuel cell?
- Explain the following:
- Henry's law about dissolution of a gas in a liquid.
- Boiling point elevation constant for a solvent.
- A solution of glycerol (C3H8O3) in water was prepared by dissolving some glycerol in 500 g of water. This solution has a boiling point of 100.42°C. What mass of glycerol was dissolved to make this solution? (Kb for water = 0.512 K kg mol–1).
Match the terms given in Column I with the units given in Column II.
→| | Column I |
| Column II |
| i. | $\wedge_{\text{m}}$ | a. | Intensive property. |
| ii. | $\text{E}^{\ominus}_{\text{Cell}}$ | b. | Depends on number of ions/volume. |
| iii. | $\text{K}$ | c. | Extensive property. |
| iv. | $\Delta_{\text{r}}\text{G}_{\text{Cell}}$ | d. | Increases with dilution. |
Answer the following questions:
Give chemical reactions for the following observations:
Give chemical reactions for the following observations:
- Potassium permanganate is a good oxidising agent in basic medium.
- Inter convertibility of chromate ion and dichromate ion in aqueous solution depends upon pH of the solution.
- Potassium permanganate is thermally unstable at 513K.
- Define the following terms:
- Molarity.
- Molal elevation constant(Kb).
- A solution containing 15 g urea (molar mass = 60 g mol–1) per litre of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g mol–1) in water. Calculate the mass of glucose present in one litre of its solution.