NEET Chemistry Atomic & Molecular Mass MCQ Question
Which of the following statements about atomic and molecular mass is correct?
The molecular mass of NaCl is calculated using its discrete molecular structure.
To find the formula mass of sodium chloride, one considers the arrangement of ions in a three-dimensional structure.
The limiting reagent is the reactant that is present in the greatest amount.
The mass of one mole of any substance is equal to its molecular mass in grams.
Correct Answer
Detailed Explanation
Statement B is correct as it highlights that sodium chloride does not exist as discrete molecules, and its formula mass is calculated based on the arrangement of ions. Statement A is incorrect because NaCl does not have a discrete molecular structure. Statement C is incorrect as the limiting reagent is the reactant present in the least amount. Statement D is a general truth but does not specifically relate to atomic and molecular mass.
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