Which of the following statements is not correct for alkali metals? (a) Alkali metals are the mos...

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Which of the following statements is not correct for alkali metals?
(a) Alkali metals are the most electropositive metals.
(b) Alkali metals exist in free state in nature.
(c) These metals have the largest size in a particular period of the periodic table.
(d) Both (b) and (c)

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