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    5.

    Which of the following is a merit in the Bentham and Hooker’s system of classification?

    A

    The position of gymnosperms in between dicots and monocots

    B

    Closely related families are placed apart

    C

    The placement of family-Asteraceae in the beginning of Gamopetalae

    D

    The placement of order-Ranals in the beginning

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    6.

    Which of the following statements regarding universal rules of nomenclature is wrong?

    A

    Cations are named first, followed by anions.

    B

    The oxidation state of a metal is indicated by a Roman numeral in parentheses when necessary.

    C

    Numerical prefixes are used to denote the number of atoms of each element in a molecular compound.

    D

    The suffix '-ide' is always used for the second element in a binary compound.

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