Which of the following element shows maximum valency ? from Chem
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    Classification of Elements and Periodicity in Properties

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    511.

    Which of the following element shows maximum valency ?

    • Carbon

    • Barium

    • Nitrogen

    • Sulphur

    D.

    Sulphur

    Among all the given options, sulphur belongs to VI group of periodic table hence, it has maximum valency.

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    512.

    The metal used to recover copper from a solution of CuSO4 is :

    • Fe

    • He

    • Na

    • Ag

    Answer
    513.

    Which of the following elements never show positive oxidation number?

    • O

    • Fe

    • Ga

    • F

    Answer
    514.

    Which of the following element is a metalloid?

    • Bi

    • Sn

    • Ge

    • C

    Answer
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    515.

    What is the name of element with atomic number 105?

    • Kurchatovium

    • Dubnium

    • Nobelium

    • Holmium

    Answer
    516.

    Which among the following elements have lowest value of IE1?

    • Pb

    • Sn

    • Si

    • C

    Answer
    517.

    KI and CusO4 solution when mixed, give :

    • CuI2 + K2SO4

    • Cu2I2 + K2SO4

    • K2SO4 + Cu2I2 + I2

    • K2SO4 + CuI2 + I2

    Answer
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