Inorganic Chemistry PYQ — Page 42

Hydrogen has three isotopes $(A),(B)$ and $(C).$ If the number of neutron(s) in $(A),(B)$ and $(C)$ respectively, are $(x),(y)$ and $(z),$ the sum of $(x),(y)$ and $(z)$ is

For a ${d}^{4}$ metal ion in an octahedral field, the correct electronic configuration is :

Simplified absorption spectra of three complexes ((i) and (ii) and (iii)) of ${M}^{+n}$ ion are provided below; their ${\lambda }_{\mathrm{max}}$ values are marked as $A,B$ and $C$ respectively. The correct match between the complexes and their ${\lambda }_{\mathrm{max}}$ values is:  (i) ${[M(\mathrm{NCS}{)}_{6}]}^{(-6+n)}$ (ii) ${[{\mathrm{MF}}_{6}]}^{(-6+n)}$ (iii) ${[M{({\mathrm{NH}}_{3})}_{6}]}^{n+}$

The atomic radius of $Ag$ is closest to

The bond order and the magnetic characteristic of ${CN}^{-}$ are

The predominant intermolecular forces present in ethyl acetate, a liquid, are:

The molecule in which hybrid $\mathrm{MOs}$ involve only one d-robital of the central atom is :

The incorrect statement(s) among (a) - (c) is (are) : (a) $W(\mathrm{VI})$ is more stable than $\mathrm{Cr}(\mathrm{VI})$. (b) in the presence of $\mathrm{HCl}$, permanganate titrations provide satisfactory results. (c) some lanthanoid oxides can be used as phosphors

The volume (in $\mathrm{mL}$) of $0.1N\mathrm{NaOH}$ required to neutralise$10\mathrm{mL}\mathrm{of}0.1N$ phosphinic acid is ____________.

The total number of coordination sites in ethylenediaminetetraacetate ( ${\mathrm{EDTA}}^{4-}$) is ...................

A metal $(A)$ on heating in nitrogen gas gives compound $B.$ $B$ on treatment with ${H}_{2}O$ gives a colourless gas which when passed through $CuS{O}_{4}$ solution gives a dark blue-violet coloured solution. $A$ and $B$ respectively, are:

The shape/structure of${[{\mathrm{XeF}}_{5}]}^{-}$ and ${\mathrm{XeO}}_{3}{F}_{2}$, respectively are :

The correct order of the ionic radii of ${O}^{2-},{N}^{3-},{F}^{-},{\mathrm{Mg}}^{2+},{\mathrm{Na}}^{+}$ and ${\mathrm{Al}}^{3+}$ is :

$B$ has a smaller first ionization enthalpy than $Be$. Consider the following statement: (I) it is easier to remove $2p$ electron than$2s$ electron (II) $2p$ electron of $B$ is more shielded from the nucleus by the inner core of electrons than the $2s$ electrons of $Be$ (III) $2s$ electron has more penetration power than $2p$ electron (IV) atomic radius of $B$ is more than $Be$ (atomic number $B:5,Be=4$ ) The correct statements are.

Mischmetal is an alloy consisting mainly of :

Aqua regia is used for dissolving noble metals (Au, Pt, etc.). The gas evolved in this process is

The acidic, basic and amphoteric oxides, respectively, are

The structure of ${\mathrm{PCl}}_{5}$ in the solid state is :

Match the type of interaction in column $A$ with the distance dependence of their interaction energy in column $B:$ <table class="pyq-table"><tbody><tr><td>A</td><td>B</td></tr><tr><td>(i) ion - ion</td><td>(a) $\frac{1}{r}$</td></tr><tr><td>(ii) Dipole - dipole</td><td>(b) $\frac{1}{{r}^{2}}$</td></tr><tr><td>(iii) London dispersion</td><td>(c) $\frac{1}{{r}^{3}}$</td></tr><tr><td></td><td>(iv) $\frac{1}{{r}^{6}}$</td></tr></tbody></table>

The relative strength of the interionic/ intermolecular forces in a decreasing order is:

On heating compound $(A)$ gives a gas $(B)$ which is constituent of air. This gas when treated with ${H}_{2}$ in the presence of a catalyst gives another gas $(C)$ which is basic in nature. $(A)$ should not be :

The increasing order of boiling points of the following compounds is : 

The first ionization energy (in $kJ/mol$ ) of $Na,Mg,Al$ and $Si$ respectively are:

The d-electron configuration of $[\mathrm{Ru}(\mathrm{en}{)}_{3}]{\mathrm{Cl}}_{2}$, and $[\mathrm{Fe}{({H}_{2}O)}_{6}]{\mathrm{Cl}}_{2}$ respectively are: