Question:
Which salt absorbs ethylene effectively during storage of apple?
Which salt absorbs ethylene effectively during storage of apple?
Show Hint
In commercial cold storage, $\text{KMnO}_4$ is loaded onto carrier substrates like alumina or silica gel to maximize the surface area for gas absorption.
Updated On: Jul 10, 2026
- $\text{KMnO}_4$
- $\text{K}_2\text{SO}_4$
- $\text{KCl}$
- $\text{KNO}_3$
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Ethylene ($\text{C}_2\text{H}_4$) is a natural plant hormone that regulates ripening and aging in climacteric fruits.
In cold storage facilities for apples, controlling accumulation of ethylene gas is vital to delay ripening and extend shelf life.
Step 2: Detailed Explanation:
Potassium permanganate ($\text{KMnO}_4$) is an effective oxidizing agent that converts gaseous ethylene into ethylene glycol.
During this chemical process, the purple permanganate is reduced to solid brown manganese dioxide ($\text{MnO}_2$).
By reacting with and neutralizing ethylene in the air, it prevents the hormone from triggering premature spoilage.
Step 3: Final Answer:
The salt that absorbs ethylene effectively is $\text{KMnO}_4$.
Was this answer helpful?
0
0
Top ICAR AIEEA Horticulture Questions
- In banana:
Statement (A): Bunch feeding is a simple and low-cost method.
Statement (B): It is the direct way to supply nutrients to the bunch.
Statement (C): Only micronutrients can be given through this method.
Choose the correct answer from the options given below. - The softwood grafting
Statement (I): Is done with mature, procured scion on the emerging soft, coppery-red shoot of the rootstock, which is 60-70 days old.
Statement (II): Is used for raising desired varieties of mango, sapota, tamarind and cashew.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): In garlic modified roots are economic part.
Statement (II): Characteristic odour in garlic is due to volatile organic sulfur-containing compounds that are rapidly produced upon tissue damage and diffuse into the air.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The flowers of ridge gourd start opening in the evening and remain open throughout the night.
Statement (II): Pollination of ridge gourd is done in the day time.
In light of the above statements, choose the most appropriate answer from the options given below. - Given below are two statements:
Statement (I): The first gynoecious based hybrid of bitter gourd is Pusa Hybrid-4 developed by ICAR-IARI, New Delhi.
Statement (II): The male:female ratio of the gynoecious based hybrids of bitter gourd is 25:1.
In light of the above statements, choose the most appropriate answer from the options given below.
View More Questions
Top ICAR AIEEA Plant Physiology Questions
- Which phytohormone is regarded as an anti-stress promoter and growth bio-stimulator?
- Which of the following is a C4 plant?
- The peg formation in groundnut are positively
- Given below are two statements:
Statement (I): The non deep type is the most common primary dormancy
Statement (II): In this type of dormancy species require light or darkness to germinate or chilling stratification
In light of the above statements, choose the most appropriate answer from the options given below: - Best training method in high density peach planting
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions