Consider the following statements and select the correct option. Statement A: Sugarcane juice can be fermented to give alcohol (ethanol). Statement B: Alcohol is added to petrol because it is a cleaner fuel.
This question asks to evaluate two statements regarding the fermentation of sugarcane juice and the use of alcohol in petrol.
Statement A Analysis: Sugarcane Juice Fermentation
- Sugarcane juice is rich in sugars, primarily sucrose.
- These sugars can be converted into ethanol and carbon dioxide through the biological process of fermentation, typically carried out by yeast.
- This process is fundamental to the production of ethanol, a type of alcohol.
- Therefore, Statement A is correct.
Statement B Analysis: Alcohol as Fuel Additive
- Alcohol, specifically ethanol, is often blended with petrol (gasoline).
- Ethanol burns more completely than gasoline, producing fewer harmful emissions such as carbon monoxide (CO) and particulate matter.
- This characteristic makes ethanol a cleaner fuel compared to pure gasoline in certain aspects.
- Therefore, Statement B is correct.
Conclusion
Since both Statement A and Statement B are factually correct, the option stating that both are correct is the right choice.
Important Questions from Chemistry in Everyday Life
Consider the following statements and select the correct option.
Statement A: Plants require specific soil pH for proper growth.
Statement B: Farmers use pH values to decide the type of fertiliser to add.- At what pH does tooth decay begin to occur in the human mouth?
- Read the following statements carefully and select the correct option. Assertion (A): Keeping oily food in airtight containers prevents rancidity. Reason (R): Airtight containers slow down the oxidation of fats and oils.
Which of the following statement(s) about the artificial sweeterning agents is/are TRUE?
1. Ortho-sulphobenzimide is the first popular artificial sweetening agent.
2. Ortho-sulphobenzimide is also called as saccharin.
3. Ortho-sulphobenzimide is about 100 times as sweet as cane sugar.Choose the correct answer from the options given below:
Which of the following statements about the types of soaps is/are TRUE?
1. Transparent soaps are made by dissolving the soap in ethanol and then evaporating the excess solvent.
2. Shaving soaps contain fillers like sodium rosinate, sodium silicate, borax and sodium carbonate.
3. Soap chips are made by running a thin sheet of melted soap onto a cool cylinder and scraping off the soaps in small broken pieces.
Choose the correct answer from the options given below:
