JEE Main 2014 — Inorganic Chemistry

Amongst the following, identify the species with an atom in $+6$ oxidation state.

An octahedral complex of Co$^{3}$$^{+}$ is diamagnetic. The hybridisation involved in the formation of the complex is :

An octahedral complex with molecular composition M.5NH$_{3}$.Cl.SO$_{4}$ has two isomers, A and B. The solution of A gives a white precipitate with AgNO$_{3}$ solution and the solution of B gives white precipitate with BaCl$_{2}$ solution .The type of isomerism exhibited by the complex is :

Consider the coordination compound, $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$. In the formation of this complex, the species which acts as the Lewis acid is:

Copper becomes green when exposed to moist air for a long period. This is due to:

Example of a three-dimensional silicate is :

For which of the following molecule significant $\mu \neq 0$ ?  

In allene $\left(\mathrm{C}_3 \mathrm{H}_4\right)$, the type(s) of hybridization of the carbon atoms is (are) :

In the following sets of reactants which two sets best exhibit the amphoteric character of Al$_{2}$O$_{3}$ . xH$_{2}$O ? $\begin{matrix} \text{Set I} & {\text{Al}}_{2} {\text{O}}_{3} \cdot {\text{xH}}_{2} {\text{O}}_{( \text{s} )} + {\text{OH}}_{( \text{aq} )}^{-} \\ \text{Set II} & {\text{Al}}_{2} {\text{O}}_{3} \text{x} \cdot {\text{H}}_{2} {\text{O}}_{( \text{s} )} + {\text{H}}_{2} {\text{O}}_{( \text{l} )} \\ \text{Set III} & {\text{Al}}_{2} {\text{O}}_{3} \text{x} \cdot {\text{H}}_{2} {\text{O}}_{( \text{s} )} + {\text{H}}_{( \text{aq} )}^{+} \\ \text{Set IV} & {\text{Al}}_{2} {\text{O}}_{3} \cdot {\text{xH}}_{2} {\text{O}}_{( \text{s} )} + {\text{NH}}_{ 3 ( \text{aq} ) } \end{matrix}$

Nickel $\text{(Z} \text{=} \text{28)}$ combines with a uninegative monodentate ligand to form a diamagnetic complex ${ [ { \text{NiL}}_{\text{4}} ]}^{ \text{2}-} .$ The hybridisation involved and the number of unpaired electrons present in the complex are respectively:

Shapes of certain interhalogen compounds are stated below. Which one of them is not correctly stated?

Similarity in chemical properties of the atoms of elements in a group of the Periodic table is most closely related to:

The correct order of bond dissociation energy among $\mathrm{N}_2, \mathrm{O}_2, \mathrm{O}_2^{-}$is shown in which of the following arrangements?

The correct statement about the magnetic properties of [Fe(CN)$_{6}$]$^{3-}$ and [FeF$_{6}$]$^{3-}$ is : (Z = 26).

The equation which is balanced and represents the correct product(s) is

The gas evolved on heating ${\mathrm{CaF}}_{2}$ and ${\mathrm{SiO}}_{2}$ with concentrated ${H}_{2}{\mathrm{SO}}_{4}$, on hydrolysis gives a white gelatinous precipitate. The precipitate is:

The number and type of bonds in ${C}_{2}^{2-}$ ion in ${\mathrm{CaC}}_{2}$ are:

The octahedral complex of a metal ion ${M}^{3+}$ with four monodentate ligands ${L}_{1},{L}_{2},{L}_{3}\mathrm{and}{L}_{4}$$_{ }$absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

Which of the following arrangements represents the increasing order (smallest to largest) of ionic radii of the given species $\mathrm{O}^{2-}, \mathrm{S}^{2-}, \mathrm{N}^{3-}, \mathrm{P}^{3-}$ ?

Which of the following has unpaired electron(s)?

Which of the following is not formed when H$_{2}$S reacts with acidic K$_{2}$Cr$_{2}$O$_{7}$ solution ?

Which of the following molecules has two sigma $(\sigma)$ and two pi $(\pi)$ bonds?

Which of the following name formula combinations is not correct?

Which of the following series correctly represents relations between the elements from $\mathrm{X}$ to $\mathrm{Y}$ ? $\mathrm{X} \rightarrow \mathrm{Y}$

Which of the following xenon-oxo compounds may not be obtained by hydrolysis of xenon fluorides?

Which of these statements is not true ?

Which one of the following complexes will most likely absorb visible light? (At nos. $\mathrm{Sc}=21, \mathrm{Ti}=22, \mathrm{~V}=23, \mathrm{Zn}=30$ )

Which one of the following does not have a pyramidal shape?

Which one of the following exhibits the large number of oxidation states?

Which one of the following has largest ionic radius ?

Which one of the following molecules is paramagnetic?

Which one of the following properties is not shown by NO ?