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Science and Technology › Renewable Energy Technology

Science and Technology › Renewable Energy Technology

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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:

Options

(a)

1 only

(b)

1 and 2 only

(c)

2 and 3 only

(d)

1, 2 and 3*

Answer

(A)