Regarding molarity, which of the following statements are correct

  1. A
    Units of molarity gmmoles kg1
  2. B
    Molarity of dibasic acid is half of its normality
  3. C
    Normality×GEWGMW
  4. D
    Molarity always equals to its Normality

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    Solution:

    Molarity of solution means number of moles of solute per liter.

    So, units of molarity are moles per liter. Hence, statement A is wrong.

    The statement B “Molarity of dibasic acid is half of its normality” is correct.

    Since the relation between normality and molarity is given below.

              N=n×M

    Here, n represents basicity of an acid or acidity of a base.

    The relation between normality, molarity , GEW and GMW is given as

                 Normality×GEWGMW=Molarity

    So, the statements in B and C are correct.

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