Inorganic Chemistry PYQ — Page 19
JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
All Inorganic Chemistry Questions (1476)
The coordination environment of \(\mathrm{Ca}^{2+}\) ion in its complex with \(\mathrm{EDTA}^{4-}\) is :
In the lewis dot structure for \(\mathrm{NO}_2^{-}\), total number of valence electrons around nitrogen is _______
The element which shows only one oxidation state other than its elemental form is :
The total number of anti bonding molecular orbitals, formed from $2s$ and $2p$ atomic orbitals in a diatomic molecule is _____________.
A reagent which gives brilliant red precipitate with Nickel ions in basic medium is
In which one of the following metal carbonyls, $\mathrm{CO}$ forms a bridge between metal atoms?
Number of compounds from the following with zero dipole moment is ______ \(\mathrm{HF}, \mathrm{H}_2, \mathrm{H}_2 \mathrm{~S}, \mathrm{CO}_2, \mathrm{NH}_3, \mathrm{BF}_3, \mathrm{CH}_4, \mathrm{CHCl}_3, \mathrm{SiF}_4, \mathrm{H}_2 \mathrm{O}, \mathrm{BeF}_2\)
The metal that shows highest and maximum number of oxidation state is :
Match List-I with List-II <table class="pyq-table"><tbody><tr><td></td><td>List I (Species)</td><td></td><td>List II (Electronic distribution)</td></tr><tr><td>A.</td><td>${\mathrm{Cr}}^{+2}$</td><td>i.</td><td>$3{d}^{8}$</td></tr><tr><td>B.</td><td>${\mathrm{Mn}}^{+}$</td><td>ii.</td><td>$3{d}^{3}4{s}^{1}$</td></tr><tr><td>C.</td><td>${\mathrm{Ni}}^{+2}$</td><td>iii.</td><td>.$3{d}^{4}$</td></tr><tr><td>D.</td><td>${V}^{+}$</td><td>iv.</td><td>$3{d}^{5}4{s}^{1}$</td></tr></tbody></table>Choose the correct answer from the options given below:
Anomalous behaviour of oxygen is due to its
Among the following oxide of $p$ - block elements, ${\mathrm{Cl}}_{2}{O}_{7},\mathrm{CO},{\mathrm{PbO}}_{2},{N}_{2}O,\mathrm{NO},{\mathrm{Al}}_{2}{O}_{3},{\mathrm{SiO}}_{2},{N}_{2}{O}_{5},{\mathrm{SnO}}_{2}$
Number of moles of ${H}^{+}$ ions required by $1$ mole of ${\mathrm{MnO}}_{4}^{-}$ to oxidise oxalate ion to ${\mathrm{CO}}_{2}$ is ______.
On passing a gas, '$X$', through Nessler's reagent, a brown precipitate is obtained. The gas '$X$ ' is
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The total number of geometrical isomers shown by \(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\)complex ion is three. Reason (R): \(\quad\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\)complex ion has an octahedral geometry. In the light of the above statements, choose the most appropriate answer from the options given below :
The element having the highest first ionization enthalpy is
Which of the following acts as a strong reducing agent? (Atomic number : $\mathrm{Ce}=58,\mathrm{Eu}=63$, $\mathrm{Gd}=64,\mathrm{Lu}=71)$
The number of molecules/ion/s having trigonal bipyramidal shape is …….. . ${\mathrm{PF}}_{5},{\mathrm{BrF}}_{5},{\mathrm{PCl}}_{5},{[{\mathrm{PtCl}}_{4}]}^{2-},{\mathrm{BF}}_{3},\mathrm{Fe}(\mathrm{CO}{)}_{5}$
Match List - I with List-II <table class="pyq-table"><tbody><tr><td></td><td>List I (Molecule)</td><td></td><td>List II (Shape)</td></tr><tr><td>A.</td><td>${\mathrm{BrF}}_{5}$</td><td>i.</td><td>T-shape</td></tr><tr><td>B.</td><td>${H}_{2}O$</td><td>ii.</td><td>See saw</td></tr><tr><td>C.</td><td>${\mathrm{ClF}}_{3}$</td><td>iii.</td><td>Bent</td></tr><tr><td>D.</td><td>${\mathrm{SF}}_{4}$</td><td>iv.</td><td>Square pyramidal</td></tr></tbody></table>
The \(\mathrm{F}^{-}\)ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.
Give below are two statements: Statement-I : Noble gases have very high boiling points. Statement-II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low temperature. Hence, they have very high boiling points. In the light of the above statements. choose the correct answer from the options given below:
Consider the oxides of group $14$ elements $Si{O}_{2},Ge{O}_{2},Sn{O}_{2},Pb{O}_{2},CO$ and $GeO$. The amphoteric oxides are
If IUPAC name of an element is "Unununnium" then the element belongs to nth group of periodic table. The value of $n$ is _______.
The $\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}$ bond angle values in a fac- $[\mathrm{Co}{({\mathrm{NH}}_{3})}_{3}{\mathrm{Cl}}_{3}]$ complex is/are:
The total number of stereoisomers for the complex $[\mathrm{Cr}(\mathrm{ox}{)}_{2}\mathrm{ClBr}{]}^{3–}$ (where ox = oxalate) is