Inorganic Chemistry PYQ — Page 36

Statement I : Sodium hydride can be used as an oxidising agent. Statement II : The lone pair of electrons on nitrogen in pyridine makes it basic. Choose the CORRECT answer from the options given below :

The nature of oxides ${V}_{2}{O}_{3}$ and $\mathrm{CrO}$ is indexed as $'X'$ and $'Y'$ type respectively. The correct set of $X$ and $Y$ is:

Which of the following is a noble gas?

To an aqueous solution containing ions such as ${\mathrm{Al}}^{3+},{\mathrm{Zn}}^{2+},{\mathrm{Ca}}^{2+},{\mathrm{Fe}}^{3+},{\mathrm{Ni}}^{2+},{\mathrm{Ba}}^{2+}$ and ${\mathrm{Cu}}^{2+}$ was added $\mathrm{conc}.\mathrm{HCl}$, followed by ${H}_{2}S$. The total number of cations precipitated during this reaction is/are :

The common positive oxidation states for an element with atomic number $24,$ are:

The number of $4f$ electrons in the ground state electronic configuration of ${\mathrm{Gd}}^{2+}$ is [Atomic number of $\mathrm{Gd}=64]$

Indicate the complex/complex ion which did not show any geometrical isomerism :

A xenon compound $A$ upon partial hydrolysis gives ${\mathrm{XeO}}_{2}{F}_{2}$. The number of lone pair of electrons present in compound $A$ is ___ (Round off to the Nearest integer)

The electrode potential of ${M}^{2+}/M$ of $3$ d-series elements shows positive value for?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$. Assertion $A$ : Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation. Reason $R$ : Fluorine is the most electronegative element and hydrogen bonds in $\mathrm{HF}$ are symmetrical. In the light of the above statements, choose the most appropriate answer from the options given below:

Which one of the following is used to remove most of plutonium from spent nuclear fuel?

The hybridisations of the atomic orbitals of nitrogen in ${\mathrm{NO}}_{2}^{-},{\mathrm{NO}}_{2}^{+}$ and ${\mathrm{NH}}_{4}^{+}$ respectively are.

Which one of the following lanthanides exhibits $+2$ oxidation state with diamagnetic nature ? (Given $Z$ for $\mathrm{Nd}=60,\mathrm{Yb}=70,\mathrm{La}=57,\mathrm{Ce}=58)$

The difference between bond orders of $\mathrm{CO}$ and ${\mathrm{NO}}^{\oplus }$ is $\frac{x}{2}$ where $x=$ (Round off to the Nearest Integer)

The interaction energy of London forces between two particles is proportional to ${r}^{x}$, where $r$ is the distance between the particles. The value of $x$ is :

Match List$-I$ with List $-\mathrm{II}$ : <table class="pyq-table"><tbody><tr><td></td><td>List $-I$</td><td></td><td>List$-\mathrm{II}$</td></tr><tr><td>$(a)$</td><td>$\mathrm{NaOH}$</td><td>$(i)$</td><td>Acidic</td></tr><tr><td>$(b)$</td><td>$\mathrm{Be}(\mathrm{OH}{)}_{2}$</td><td>$(\mathrm{ii})$</td><td>Basic</td></tr><tr><td>$(c)$</td><td>$\mathrm{Ca}(\mathrm{OH}{)}_{2}$</td><td>$(\mathrm{iii})$</td><td>Amphoteric</td></tr><tr><td>$(d)$</td><td>$B(\mathrm{OH}{)}_{3}$</td><td></td><td></td></tr><tr><td>$(e)$</td><td>$\mathrm{Al}(\mathrm{OH}{)}_{3}$</td><td></td><td></td></tr></tbody></table>Choose the most appropriate answer from the options given below

In Carius method for estimation of halogens, $0.2g$ of an organic compound gave $0.188g$ of $\mathrm{AgBr}.$ The percentage of bromine in the compound is __________. (Nearest integer) [Atomic mass: $\mathrm{Ag}=108,\mathrm{Br}=80$]

In the ground state of atomic $\mathrm{Fe}(Z=26)$, the spin-only magnetic moment is $\times {10}^{-1}\mathrm{BM}$. (Round off to the Nearest Integer). [ Given $:\sqrt{3}=1.73,\sqrt{2}=1.41]$

Match List$-I$ with List$-\mathrm{II}$ <table class="pyq-table"><tbody><tr><td></td><td>List$-I$ (process)</td><td></td><td>List$-\mathrm{II}$ (catalyst)</td></tr><tr><td>(a)</td><td>Deacon's process</td><td>(i)</td><td>$\mathrm{ZSM}-5$</td></tr><tr><td>(b)</td><td>Contact process</td><td>(ii)</td><td>${\mathrm{CuCl}}_{2}$</td></tr><tr><td>(c)</td><td>Cracking of hydrocarbons</td><td>(iii)</td><td>$\mathrm{Ni}$</td></tr><tr><td>(d)</td><td>Hydrogenation of vegetable oils</td><td>(iv)</td><td>${V}_{2}{O}_{5}$</td></tr></tbody></table>Choose the most appropriate answer from the options given below-

Which of the following is Lindlar catalyst?

The incorrect statement about ${B}_{2}{H}_{6}$ is :

Given below are two statements: Statement $I:$ Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame. Statement $\mathrm{II}:$ Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame. In the light of the above statements, choose the most appropriate answer from the options given below.

Number of bridging $\mathrm{CO}$ ligands in $[{\mathrm{Mn}}_{2}{(\mathrm{CO})}_{10}]$ is

The overall stability constant of the complex ion ${[\mathrm{Cu}{({\mathrm{NH}}_{3})}_{4}]}^{2+}$ is $2.1\times {10}^{13}.$ The overall dissociation constant is $y\times {10}^{-14}$. Then $y$ is (Nearest integer)