Total Number of Question/s - 2650

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  • 1. Mixed Topic - Quiz


    1. If the shortest wavelength of hydrogen atom in Lyman series is x, then longest wavelength in Balmer series of He+ is
    a) $\frac{9x}{5}$
    b) $\frac{36x}{5}$
    c) $\frac{x}{4}$
    d) $\frac{5x}{9}$

    2. Which of the following has square planar structure?
    a) $\left [NiCl_{4} \right ]^{2-}$
    b) $\left [Zn\left (NH_{3} \right )_{4} \right ]^{2+}$
    c) $\left [Ni\left (CO \right )_{4} \right ]$
    d) $\left [Ni\left (CN \right )_{4} \right ]^{2+}$