JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
The correct order of ionic radii for the ions, ${P}^{3-},{S}^{2-},{\mathrm{Ca}}^{2+},{K}^{+},{\mathrm{Cl}}^{-}$ is :
Which one of the following is used to remove most of plutonium from spent nuclear fuel?
The INCORRECT statement regarding the structure of ${C}_{60}$ is :
Potassium permanganate on heating at $513K$ gives a product which is :
A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is
The correct set from the following in which both pairs are in correct order of melting point is:
The ${\mathrm{Eu}}^{2+}$ ion is a strong reducing agent in spite of its ground state electronic configuration (outermost) : [Atomic number of $\mathrm{Eu}=63$ ]
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 reaction of white phosphorus on boiling with alkali in inert atmosphere resulted in the formation of product $A.$ The reaction $1\mathrm{mol}$ of $A$ with excess of ${\mathrm{AgNO}}_{3}$ in aqueous medium gives ________ mole(s) of $\mathrm{Ag}.$ (Round off to the Nearest Integer).
The correct order of intensity of colors of the compounds is:
The difference between bond orders of $\mathrm{CO}$ and ${\mathrm{NO}}^{\oplus }$ is $\frac{x}{2}$ where $x=$ (Round off to the Nearest Integer)
Compound $A$ used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound $A$ is:
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: $\mathrm{Ag}=108,\mathrm{Br}=80$]
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-
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 $:\sqrt{3}=1.73,\sqrt{2}=1.41]$
Which of the following is Lindlar catalyst?
What is the correct order of the following elements with respect to their density?
The major components in "Gun Metal" are:
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.
In the given chemical reaction, colors of the${\mathrm{Fe}}^{2+}$ and ${\mathrm{Fe}}^{3+}$ ions, are respectively : $5{\mathrm{Fe}}^{2+}+{\mathrm{MnO}}_{4}^{-}+8{H}^{+}\rightarrow {\mathrm{Mn}}^{2+}+4{H}_{2}O+5{\mathrm{Fe}}^{3+}$
$1$ mol of an octahedral metal complex with formula ${\mathrm{MCl}}_{3}\cdot 2L$ on reaction with excess of ${\mathrm{AgNO}}_{3}$ gives $1\mathrm{mol}$ of $\mathrm{AgCl}.$ The denticity of Ligand $L$ is___________ (Integer answer)
Spin only magnetic moment in $\mathrm{BM}$ of ${[\mathrm{Fe}{(\mathrm{CO})}_{4}({C}_{2}{O}_{4})]}^{+}$ 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)
Which one of the following complexes is violet in colour?