NEET UG 2003 — Inorganic Chemistry

The correct order of ionic radii of $\mathrm{Y}^{3+}$, $\mathrm{La}^{3+}$ and $\mathrm{Lu}^{3+}$ is: (Atomic nos $\mathrm{Y}=39, \mathrm{La}=57, \mathrm{Eu}=63 \mathrm{Lu}$ $=71$ )

According to IUPAC nomenclature sodium nitroprusside is named as:

Among the following which is not the $\pi$-bonded organometallic compound?

The basic character of the transition metal monoxides follows the order: (Atomic nos. $\mathrm{Ti}=22, \mathrm{~V}=23, \mathrm{Cr}=24, \mathrm{Fe}$ $=26$ )

Which one of the following octahedral complexes will not show geometric isomerism? ( $\mathrm{A}$ and $\mathrm{B}$ are monodentate ligands)

The number of unpaired electrons in the complex ion $\left[\mathrm{CoF}_6\right]^{3-}$ is: (Atomic no. : $\mathrm{Co}=27$ )

Which one of the following characteristics of the transition metals is associated with their catalytic activity?

The oxidation states of sulphur in the anions $\mathrm{SO}_3^2, \mathrm{~S}_2 \mathrm{O}_4^{2-}$ and $\mathrm{S}_2 \mathrm{O}_6^{2-}$ follow of order

Which one of following statements is not correct of sigma- and $\mathrm{Pi}-$ bonds formed between two carbon atoms?