Rancidity Prevention: Assertion and Reason Analysis
This solution examines the relationship between keeping oily food in airtight containers and the process of oxidation.
Assertion Analysis
Assertion (A) claims that storing oily food in airtight containers prevents rancidity. Rancidity, the undesirable change in fats and oils, is primarily caused by oxidation. Airtight containers limit the food's exposure to atmospheric oxygen, a key factor in oxidation. Therefore, the assertion that this method prevents rancidity is factually correct.
Reason Analysis
Reason (R) explains that airtight containers slow down the oxidation of fats and oils. By creating a barrier against oxygen, these containers reduce the rate at which fats and oils react with it. This reduction in oxidation directly contributes to preventing spoilage. Hence, the reason is also factually correct.
Relationship Evaluation
Reason (R) provides the underlying scientific principle for Assertion (A). The prevention of rancidity mentioned in (A) happens *because* the oxidation process is slowed down by the airtight containers, as stated in (R). Therefore, Reason (R) serves as a correct and direct explanation for Assertion (A).
Conclusion: Both statements are true, and the reason correctly explains the assertion.
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.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.
- At what pH does tooth decay begin to occur in the human mouth?
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:
