Which of the following liquids can dissolve noble metals such as gold and platinum?

Aqua regia

The correct answer is option 2.Aqua regia.

The liquid that can dissolve noble metals such as gold and platinum is Aqua regia

Aqua regia is a mixture of concentrated nitric acid (HNO₃) and hydrochloric acid (HCl) in a 1:3 ratio. It is known for its ability to dissolve noble metals, including gold and platinum, which are otherwise resistant to corrosion by individual acids.