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  4. Ionic character of a bond ( H - X ) varies with the difference in electronegativity values as shown below. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/52413215bbd1c30c3a0938b765834b2b-.png /> 50 % ionic character of HX is when EN difference is

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Q. Ionic character of a bond $( H - X )$ varies with the difference in electronegativity values as shown below.
image
$50 \%$ ionic character of $HX$ is when $EN$ difference is

Classification of Elements and Periodicity in Properties

Solution:

When electronegativity difference of $X$ and $H$ is 1.7 then $H X$ is $50 \%$ ionic and $50 \%$ covalent.