The number of species from the following which are paramagnetic and with bond order equal to one is _________.
$$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$$
Answer (integer)
1
Solution
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<th class="tg-amwm">Sol.</th>
<th class="tg-amwm">Magnetic behaviour</th>
<th class="tg-amwm">Bond order</th>
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<tr>
<td class="tg-baqh">$\mathrm{H}_2$</td>
<td class="tg-baqh">Diamagnetic</td>
<td class="tg-baqh">$1$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{He_2^+}$</td>
<td class="tg-baqh">Paramagnetic</td>
<td class="tg-baqh">$0.5$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{O_2^+}$</td>
<td class="tg-baqh">Paramagnetic</td>
<td class="tg-baqh">$2.5$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{N_2^{2-}}$</td>
<td class="tg-baqh">Paramagnetic</td>
<td class="tg-baqh">$2$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{O_2^{2-}}$</td>
<td class="tg-baqh">Diamagnetic</td>
<td class="tg-baqh">$1$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{F_2}$</td>
<td class="tg-baqh">Diamagnetic</td>
<td class="tg-baqh">$1$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{Ne_2^+}$</td>
<td class="tg-baqh">Paramagnetic</td>
<td class="tg-baqh">$0.5$</td>
</tr>
<tr>
<td class="tg-baqh">$\mathrm{B_2}$</td>
<td class="tg-baqh">Paramagnetic</td>
<td class="tg-baqh">$1$</td>
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About this question
Subject: Chemistry · Chapter: Chemical Bonding and Molecular Structure · Topic: Ionic and Covalent Bonding
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