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JEE Main Chemistry question

ChemistrySome Basic Concepts of ChemistryJEE Main

Arrange the following in the order of increasing mass (atomic mass; O = 16, Cu = 63, N = 14): I. One atom of oxygen, II. One atom of nitrogen, III. mole of oxygen, IV. mole of copper [Kerala CEE 2011]

Answer: (A)

Solution

Mass of I g; mass of II g; mass of III

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Question ID VK-130462