Why is mercury taken in a barometer?

What will be the height of mercury column in a barometer it it is taken to the moon?

At higher altitudes the height of mercury column in a barometer will be ____________

The atmoshperic pressure at sea level is determined by what height of mercury comlumn in a barometer?

Calculate the atmospheric pressure , if the height of mercury column in a barometer is 760 mm

What will be the length of mercury column in a barometer tube, when the atmospheric pressure is 76 cm of mercury and the tube is inclined at an angle of 30 ^(@) with the horizontal direction ?

Calculate the length of mercury column in a barometer tube which is inclined at an angle of 45^(@) with horizontal direction if the atmospheric pressure is 75 cm of mercury.

What will be the length of mercury column in a barometer tube when the atmospheric pressure is x cm of mercury and the tube is inclined at an angle phi with the vertical direction ?

What will be the length of mercury column in a barometer tube when the atmosperic pressure is 75 cm of mercury and the tube is inclined at an angle of 60^@ with the horizontal direction?