Consider the following statements:

Assertion (A) : Reverse osmosis is used to purify water.

Reason (R) : It is a membrane technology filtration method that removes many types of large molecules and ions by applying pressure to the solution on one side of a selective membrane.

Now select your answer according to the coding scheme given below : 

Key Points

• Reverse osmosis (RO) is a widely utilized technology for water purification, effectively removing contaminants from water by forcing it through a semi-permeable membrane.
• The RO process involves applying pressure to the water solution, compelling it to move across a selective membrane that blocks the passage of impurities.
• This method is capable of removing large molecules and ions, including various types of dissolved and particulate materials from water, making it suitable for producing potable water.
• RO systems are used in both industrial and domestic settings for water purification, demonstrating their effectiveness and versatility in water treatment applications.
• The assertion that RO is used to purify water is accurate, and the reason provided explains the operational mechanism behind RO, affirming its relevance and correctness.

Additional Information

• The effectiveness of RO can vary based on the quality of the feed water and the specific contaminants present, necessitating periodic maintenance and membrane replacement to ensure optimal performance.
• RO systems can also be integrated with other water treatment processes, such as carbon filtration and UV light treatment, to further enhance water quality.
• The selection of a RO system should consider factors like water output requirements, cost, and the specific water quality needs of the user, demonstrating the importance of customized water treatment solutions.