Question
Write two main functions of carbohydrates in plants.
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Answer
Two major functions of carbohydrates in plants are following:
- Structural material for plant cell walls: The polysaccharide cellulose acts as the chief structural material of the plant cell walls.
- Reserve food material: The polysaccharide starch is the major reserve food material in the plants. It is stored in seeds and act as the reserve food material for the tiny plant till it is capable of making its own food by photosynthesis.
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The following data were obtained during the first order thermal decomposition of SO2Cl2 at a constant volume:
SO2Cl2(g)$\rightarrow$SO2(g) + Cl2(g)
Calculate the rate constant.
(Given: log4 = 0.6021, log2 = 0.3010)
→SO2Cl2(g)$\rightarrow$SO2(g) + Cl2(g)
| Experiment | Time/s-1 | Total pressure/atm |
| 1 2 | 0 100 | 0.4 0.7 |
(Given: log4 = 0.6021, log2 = 0.3010)
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| Column I | Column II | ||
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| (ii) | $\text{CH}_2==\text{CH}-\text{CH}_2-\text{X}$ | (b) | Alkyl halide |
| (iii) |  | (c) | Vinyl halide |
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