JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
Copper becomes green when exposed to moist air for a long period. This is due to:
The correct statement about the magnetic properties of [Fe(CN)$_{6}$]$^{3-}$ and [FeF$_{6}$]$^{3-}$ is : (Z = 26).
Bond distance in $\mathrm{HF}$ is $9.17 \times 10^{-11} \mathrm{~m}$. Dipole moment of $\mathrm{HF}$ is $6.104 \times 10^{-30} \mathrm{Cm}$. The percentage ionic character in $\mathrm{HF}$ will be : (electron charge $=1.60 \times 10^{-19} \mathrm{C}$ )
Which has trigonal bipyramidal shape ?
Which one of the following molecules is expected to exhibit paramagnetic behaviour?
Which is the correct order of second ionization potential of $\mathrm{C}, \mathrm{N}, \mathrm{O}$ and $\mathrm{F}$ in the following ?
The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na $^{+}$ will be :
Bond order normally gives idea of stability of a molecular species. All the molecules viz. $\mathrm{H}_2, \mathrm{Li}_2$ and $\mathrm{B}_2$ have the same bond order yet they are not equally stable. Their stability order is :
In which of the following sets, all the given species are isostructural ?
Which one of the following molecules is polar?
The shape of $\mathrm{IF}_6^{-}$is :
Trigonal bipyramidal geometry is shown by:
Which of the following complex species is not expected to exhibit optical isomerism?
The solubility order for alkali metal fluoride in water is :
Oxidation state of sulphur in anions $\mathrm{SO}_3^{2-}, \mathrm{S}_2 \mathrm{O}_4^{2-}$ and $\mathrm{S}_2 \mathrm{O}_6^{2-}$ increases in the orders :
Which of the following arrangements does not represent the correct order of the property stated against it?
Electron gain enthalpy with negative sign of fluorine is less than that of chlorine due to :
Type of isomerism which exists between $\left[\mathrm{Pd}\left(\mathrm{C}_6 \mathrm{H}_5\right)_2(\mathrm{SCN})_2\right]$ and $\left[\mathrm{Pd}\left(\mathrm{C}_6 \mathrm{H}_5\right)_2(\mathrm{NCS})_2\right]$ is :
The structure of which of the following chloro species can be explained on the basis of $\mathrm{dsp}^2$ hybridization?
Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride, gives brown-red vapours of :
$\mathrm{XeO}_4$ molecule is tetrahedral having:
The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds :
When a small amount of $\mathrm{KMnO}_4$ is added to concentrated $\mathrm{H}_2 \mathrm{SO}_4$, a green oily compound is obtained which is highly explosive in nature. Compound may be :
Which of the following represents the correct order of increasing first ionization enthalpy for $\mathrm{Ca},\mathrm{Ba},S,\mathrm{Se}\text{and}\mathrm{Ar}$?