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    Question

    Identify whether the given statements about ionisation

    energy are correct or incorrect. Statement A: The ionisation energy of an atom is the amount of energy that is required to remove an electron from a mole of atoms in the gas phase. Statement B: The ionisation energy increases from top to bottom in groups and decreases from left to right across a period.
    A Both Statements A and B are correct Correct Answer Incorrect Answer
    B Only Statement A is correct Correct Answer Incorrect Answer
    C Both Statements A and B are incorrect Correct Answer Incorrect Answer
    D Only Statement B is correct Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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