GS PrelimsScience and TechnologyBiotechnology2024

In which of the following are hydrogels used? 1. Controlled drug delivery in patients 2. Mobile air-conditioning systems 3. Preparation of industrial lubricants Select the correct answer using the code given below:

1 only

1 and 2 only

2 and 3 only

1, 2 and 3

Correct Answer: Option A

Explanation

batman

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