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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Arrange the following elements in increasing order of electronegativity:

N,O,F,C,Si\mathrm{N}, \mathrm{O}, \mathrm{F}, \mathrm{C}, \mathrm{Si}

Choose the correct answer from the options given below:
View answer and explanation
Correct option: D
Si<C<N<O<F\text{Si}<\mathrm{C}< \mathrm{N}< \mathrm{O}< \mathrm{F}
The correct answer is D (Si<C<N<O<F\text{Si}<\mathrm{C}< \mathrm{N}< \mathrm{O}< \mathrm{F}) because electronegativity increases across a period and decreases down a group.

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The compounds of the s-block elements, with the exception of lithium and ... XX... are predominantly ionic. Here, XX 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 O,O2−,F\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F} and F−\mathrm{F}^{-} is: The electronic configuration of four elements are given below. Which elements does not belong to the same family as others?
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