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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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In a periodic table the basic character of oxides:

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Correct option: C

decreases from left to right and increases from top to bottom

Option D (decreases from left to right and increases from bottom to top) is correct because the basic character of oxides decreases across a period and increases down a group.

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The compounds of the s-block elements, with the exception of lithium and ...

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refers to Among the following elements, the most electronegative is: The pair of amphoteric hydroxides is The element with atomic number 117 if discovered would be placed in The correct order of size among

\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F}

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