Gaseous fuels due to their advantages over ther tupes of fuels are becoming highly popular . The advantages fo the fgaseous fuels are as follows :
a. High calorigic value .
b. Do not produce smoke and do not leave ash after combstion .
c. They can flow through pipes and can be ignige at a moment's notic eat any place . No sp-ecial devices are required for their combustion .
i. Coal gas is a good gaseous fuel as it conitains `95^5` combustible gaseous such as `H_2, CH_4, CO` etc , It is obtained buy destructive distillation of coal at ` 100^@ C` .
ii. Water gas is a mixture of ` CO` and `H_2` and is prepared by passing steam over incandescnt coke . The reaction is owever endothermic .
iii. Producer gas , which possesses low calorific value, so prepared by passing aair over red hot coke . It contains mainly nitrogen and ` CO`
iv. Semi-water gas is a mixture of water fas and producer fas .
v. oil gas , which is used in laboratries , is obtained by cracking of kerosene . It is a mixture of hydrocarbon (saturated and unsatureated ) mainly lower hudrocarons .
iv. `LPG`, which contains ` C_3` and ` C_4` hydrocarbon of the alkane and alkene serties , suppied in cylinders for domestic uses is very populsr these days .
Which one is the best fuel in kitchen ?

Options

A. Wood
B. Coal
C. Kerosene
D. LPG

Answer

To determine the best fuel for kitchen use among wood, coal, kerosene, and LPG, we can analyze the properties and advantages of each fuel type based on the information provided.

### Step-by-Step Solution:

1. **Identify the Fuels**: The fuels we are comparing are wood, coal, kerosene, and LPG.

2. **Evaluate Calorific Value**:
- **LPG** has a high calorific value, meaning it produces a large amount of energy when burned.
- **Wood and coal** generally have lower calorific values compared to LPG.
- **Kerosene** also has a lower calorific value than LPG.

3. **Check for Residue After Combustion**:
- **LPG** does not produce any residue or ash after combustion.
- **Wood and coal** produce ash and other residues.
- **Kerosene** may leave some residue and has an unpleasant smell.

4. **Ease of Use**:
- **LPG** is easy to use as it can be stored in cylinders and ignited quickly.
- **Wood and coal** require more effort to ignite and manage.
- **Kerosene** can be used but may require special devices for effective combustion.

5. **Pollution Considerations**:
- **LPG** produces minimal pollution when burned.
- **Wood and coal** can produce smoke and contribute to air pollution.
- **Kerosene** can also produce pollutants and has a smell that can be unpleasant.

6. **Conclusion**:
- Based on the analysis of calorific value, residue, ease of use, and pollution, **LPG** emerges as the best fuel for kitchen use. It has a high calorific value, does not produce residue, is easy to ignite, and causes less pollution compared to wood, coal, and kerosene.

### Final Answer:
**LPG is the best fuel for kitchen use.**

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