Question

Which of the following does not represent the correct order of properties indicated?

Accepted Answer

$\mathrm{Li} < \mathrm{Be} < \mathrm{B} < \mathrm{C}\left(\mathrm{IE}_1\right)$

Answer

$\mathrm{NH}_3 < \mathrm{PH}_3 < \mathrm{AsH}_3$ (acidic character)

Answer

$\mathrm{Ni}^{2+} < \mathrm{Co}^{2+} < \mathrm{Fe}^{2+} < \mathrm{Mn}^{2+}$ (unpaired electrons)

Answer

$\mathrm{Al}_2 \mathrm{O}_3 < \mathrm{MgO} < \mathrm{Na}_2 \mathrm{O} < \mathrm{K}_2 \mathrm{O}$ (basic nature)

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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