Identify the pair of elements with the highest and lowest electronegativity respectively.

  • A
    $K$ and $Rb$
  • B
    $I$ and $F$
  • C
    $F$ and $Fr$
  • D
    $Fr$ and $Li$

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An atom with high electronegativity has:

The polarity of a covalent bond between two atoms depends upon

The element with the highest electronegativity value after fluorine $(F)$ is:

If coordinate $X$ is atomic number,then select the best option for the $Y$ coordinate based on the given graph for $Li$,$Na$,and $K$.

Difficult
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Arrange the following elements in increasing order of electronegativity:
$N, O, F, C, Si$
Choose the correct answer from the options given below:

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