Which of the following electronegativity order is incorrect?

<p>Let’s compare the known electronegativities (Pauling scale) of the elements in each option:</p> <p><p><strong>F</strong> ~ 3.98 </p></p> <p><p><strong>O</strong> ~ 3.44 </p></p> <p><p><strong>N</strong> ~ 3.04 </p></p> <p><p><strong>Cl</strong> ~ 3.16 </p></p> <p><p><strong>C</strong> ~ 2.55 </p></p> <p><p><strong>B</strong> ~ 2.04 </p></p> <p><p><strong>S</strong> ~ 2.58 (sometimes listed as 2.5–2.58) </p></p> <p><p><strong>Si</strong> ~ 1.90 </p></p> <p><p><strong>Al</strong> ~ 1.61 </p></p> <p><p><strong>Be</strong> ~ 1.57 </p></p> <p><p><strong>Mg</strong> ~ 1.31 </p></p> <p>Now, check each statement:</p> <p><strong>Option A: $\mathrm{S}<\mathrm{Cl}<\mathrm{O}<\mathrm{F}$</strong></p> <p><p>S (2.58) &lt; Cl (3.16) &lt; O (3.44) &lt; F (3.98) </p></p> <p><p>This order is <strong>correct</strong>.</p></p> <p><strong>Option B: $\mathrm{Al}<\mathrm{Si}<\mathrm{C}<\mathrm{N}$</strong></p> <p><p>Al (1.61) &lt; Si (1.90) &lt; C (2.55) &lt; N (3.04) </p></p> <p><p>This order is <strong>correct</strong>.</p></p> <p><strong>Option C: $\mathrm{Al}<\mathrm{Mg}<\mathrm{B}<\mathrm{N}$</strong></p> <p><p>Actual electronegativities are Al (1.61) and Mg (1.31). </p></p> <p><p>The statement says “Al &lt; Mg,” which would mean 1.61 &lt; 1.31, which is <strong>wrong</strong>. </p></p> <p><p>Therefore, <strong>Option C</strong> is <strong>incorrect</strong>.</p></p> <p><strong>Option D: $\mathrm{Mg}<\mathrm{Be}<\mathrm{B}<\mathrm{N}$</strong></p> <p><p>Mg (1.31) &lt; Be (1.57) &lt; B (2.04) &lt; N (3.04) </p></p> <p><p>This order is <strong>correct</strong>.</p></p> <hr /> <h4><strong>Answer: Option C</strong> is the incorrect order.</h4>