Acetic Acid is another name for which of the following?
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Which of the following elements has the lowest melting point?
Which of the following gases is known as "Laughing Gas"?
What is the pH of water?
Atomic number of which of the following elements is greater than that of Phosphorus?
Fire extinguishers emit which gas?
_______________ of a material is defined as the minimum amount of the work necessary to remove a free electron from the surface of the material.
___________ is obtained by evaporation of sea.