McqMate
| Q. |
Which one of the following elements exists in liquid state at room temperature? |
| A. | Mercury |
| B. | Lead |
| C. | Sodium |
| D. | Calcium |
| Answer» A. Mercury | |
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Explanation: Mercury is a dense, silvery d- block element. It is the only metal that is liquid at standard conditions for temperature and pressure. |
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