JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
Match List-I with List-II : <table class="pyq-table"><tbody><tr><td></td><td>List-I</td><td></td><td>List-II</td></tr><tr><td>a</td><td>$[\mathrm{Co}{({\mathrm{NH}}_{3})}_{6}][\mathrm{Cr}(\mathrm{CN}{)}_{6}]$</td><td>i</td><td>Linkage isomerism</td></tr><tr><td>b</td><td>$[\mathrm{Co}{({\mathrm{NH}}_{3})}_{3}{({\mathrm{NO}}_{2})}_{3}]$</td><td>ii</td><td>Solvate isomerism</td></tr><tr><td>c</td><td>$[\mathrm{Cr}{({H}_{2}O)}_{6}]{\mathrm{Cl}}_{3}$</td><td>iii</td><td>Co-ordination isomerism</td></tr><tr><td>d</td><td>$cis-{[{\mathrm{CrCl}}_{2}(\mathrm{ox}{)}_{2}]}^{3-}$</td><td>iv</td><td>Optical isomerism</td></tr></tbody></table>Choose the correct answer from the options given below:
The oxide without nitrogen-nitrogen bond is :
Amongst the following, the linear species is:
Identify the species having one $\pi$ -bond and maximum number of canonical forms from the following :
The bond order and magnetic behaviour of ${O}_{2}^{-}$ ion are, respectively :
The first ionization energy of magnesium is smaller, as compared to that of elements $X$ and $Y$, but higher than that of $Z$. The elements $X,Y$ and $Z$, respectively, are :
Number of $\mathrm{Cl}=O$ bonds in chlorous acid, chloric acid and perchloric acid respectively are:
The total number of electrons in all bonding molecular orbitals of ${O}_{2}^{2-}$ is ......... (Round off to the nearest integer)
In the following the correct bond order sequence is:
Given below are two statements: Statement $I$ : $o$-Nitrophenol is steam volatile due to intramolecular hydrogen bonding. Statement $\mathrm{II}$ : $o$-Nitrophenol has high melting due to hydrogen bonding. In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following are isostructural pairs? A. ${\mathrm{SO}}_{4}^{2-}$ and ${{\mathrm{CrO}}_{4}}^{2-}$ B. ${\mathrm{SiCl}}_{4}$ and ${\mathrm{TiCl}}_{4}$ C. ${\mathrm{NH}}_{3}$ and ${\mathrm{NO}}_{3}^{-}$ D. ${\mathrm{BCl}}_{3}$ and ${\mathrm{BrCl}}_{3}$
The major components of German Silver are :
Given below are two statements:Statement I : ${\mathrm{CeO}}_{2}$ can be used for oxidation of aldehydes and ketones. Statement II : Aqueous solution of ${\mathrm{EuSO}}_{4}$ is a strong reducing agent. In the light of the above statements, choose the correct answer from the options given below:
The incorrect statement among the following is:
The ratio of number of water molecules in Mohr's salt and potash alum is $\times {10}^{-1}.$ (Integer answer)
Given below are two statements: One is labelled as Assertion $A$ and the other labelled as Reason $R.$ Assertion $A$ : Lithium halides are some what covalent in nature. Reason $R$ : Lithium possess high polarisation capability. In the light of the above statements, choose the most appropriate answer from the options given below:
The ionic radii of ${K}^{+},{\mathrm{Na}}^{+},{\mathrm{Al}}^{3+}$ and ${\mathrm{Mg}}^{2+}$ are in the order :
Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is:
In the structure of the dichromate ion, there is a :
In which one of the following molecules strongest back donation of an electron pair from halide to boron is expected?
The additon of dilute $\mathrm{NaOH}$ to ${\mathrm{Cr}}^{3+}$ salt solution will give :
The hybridisations of the atomic orbitals of nitrogen in ${\mathrm{NO}}_{2}^{-},{\mathrm{NO}}_{2}^{+}$ and ${\mathrm{NH}}_{4}^{+}$ respectively are.
According to molecular orbital theory, the number of unpaired electron(s) in ${O}_{2}^{2-}$ is _________ .
On complete reaction of ${\mathrm{FeCl}}_{3}$ with oxalic acid in aqueous solution containing $\mathrm{KOH}$, resulted in the formation of product $A$. The secondary valency of Fe in the product A is ______ . (Round off to the Nearest Integer).