Consider the following statements 1 Mercury is the only metallic element that is liquid at standard ...........

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Consider the following statements:

1. Mercury is the only metallic element that is liquid at standard conditions for temperature and pressure.

2. Mercury and most of its compounds are extremely toxic.

3. Toxic effect of mercury include damage to the brain, kidneys and lungs.

Which of the statements given above is/are correct?

1 and 2 only

1 and 3 only

2 and 3 only

1, 2 and 3

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Explanation:

Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lamps and other devices, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor of alternatives such as alcohol- or galinstan-filled glass thermometers and thermistor- or infrared-based electronic instruments.