Calcium would be more reactive because it is closer to francium on the periodic table, francium is the MOST reactive element.
Explanation:
This process ensures that the pressure inside of the graduated cylinder is the same as the atmospheric pressure in the room.
Suppose the level of water inside and outside the cylinder is same, pressure stays the same. Therefore, total pressure of the is made equal to atmospheric pressure by adjusting the height of cylinder. it is done till the water level is equal.
H-C≡C-H this is the lewis structure of acetylene
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