JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
Boron cannot form which one of the following anions?
The structure of $\mathrm{IF}_7$ is :
Which of the following statements regarding sulphur is incorrect?
Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?
Which of the following facts about the complex $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$ s wrong ?
In context of the lanthanoids, which of the following statements is not correct ?
Among the following the maximum covalent character is shown by the compound:
Which of the following statement is wrong?
The outer electron configuration of Gd (Atomic No : 64 is :
Which one of the following has an optical isomer ? (en = ethylenediamine)
A solution containing $2.675 \mathrm{~g}$ of $\mathrm{CoCl}_3 .6 \mathrm{NH}_3$ (molar mass $=267.5 \mathrm{~g} \mathrm{~mol}^{-1}$ ) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of $\mathrm{AgNO}_3$ to give $4.78 \mathrm{~g}$ of $\mathrm{AgCl}$ (molar mass $=143.5 \mathrm{~g} \mathrm{~mol}^{-1}$ ). The formula of the complex is (At. Mass of $\mathrm{Ag}=108 \mathrm{u}$ )
Three reactions involving $\mathrm{H}_2 \mathrm{PO}_4^{-}$are given below : (i) $\mathrm{H}_3 \mathrm{PO}_4+\mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{H}_3 \mathrm{O}^{+}+\mathrm{H}_2 \mathrm{PO}_4^{-}$ (ii) $\mathrm{H}_2 \mathrm{PO}_4^{-}+\mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{HPO}_4^{2-}+\mathrm{H}_3 \mathrm{O}^{+}$ (iii) $\mathrm{H}_2 \mathrm{PO}_4^{-}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_3 \mathrm{PO}_4+\mathrm{O}^{2-}$ In which of the above does $\mathrm{H}_2 \mathrm{PO}_4^{-}$act as an acid ?
Which one of the following reactions of Xenon compounds is not feasible ?
Knowing that the Chemistry of lanthanoids $(\operatorname{Ln})$ is dominated by its $+3$ oxidation state, which of the following statements in incorrect?
In which of the following arrangements, the sequence is not strictly according to the property written against it ?
Which of the following pairs represents linkage isomers ?
Which of the following has an optical isomer ?
The set representing the correct order of ionic radius is :
In context with the transition elements, which of the following statements is incorrect?
The bond dissociation energy of $\mathrm{B}-\mathrm{F}$ in $\mathrm{BF}_3$ is $646 \mathrm{~kJ}$ mol ${ }^{-1}$ whereas that of $\mathrm{C}-\mathrm{F}$ in $\mathrm{CF}_4$ is $515 \mathrm{~kJ}$ mol $^{-1}$. The correct reason for higher B-F bond dissociation energy as compared to that of $C$ - $F$ is :
Using MO theory predict which of the following species has the shortest bond length ?
Which one of the following pairs of species have the same bond order?
Among the following substituted silanes the one which will give rise to cross linked silicone polymer on hydrolysis is
Amount of oxalic acid present in a solution can be determined by its titration with $\mathrm{KMnO}_4$ solution in the presence of $\mathrm{H}_2 \mathrm{SO}_4$. The titration gives unsatisfactory result when carried out in the presence of $\mathrm{HCl}$, because $\mathrm{HCl}$