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  • In Mendeleev ’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later (a) Germanium (b) Chlorine (c) Oxygen (d) Silicon

In Mendeleev ’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later
(a) Germanium
(b) Chlorine
(c) Oxygen
(d) Silicon

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Ans (a)
Sol.
Chlorine, oxygen and silicon were already included in Mendeleev's periodic table.
Eka-Silicon -- Germanium
Eka-aluminum -- Gallium
were the elements that are left by Mendeleev in his periodic table.

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