JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
The correct order of bond angles (smallest first) in $\mathrm{H}_2 \mathrm{~S}, \mathrm{NH}_3, \mathrm{BF}_3$ and $\mathrm{SiH}_4$ is
The bond order in $\mathrm{NO}$ is $2.5$ while that in $\mathrm{NO}^{+}$is 3 . Which of the following statements is true for these two species?
Which one the following statement regarding helium is incorrect?
Consider the following nuclear reactions $$ \begin{aligned} & { }_{92}^{238} \mathrm{M} \rightarrow{ }_{\mathrm{y}}^{\mathrm{x}} \mathrm{N}+{ }_2^4 \mathrm{He} \\ & { }_{\mathrm{y}}^{\mathrm{N}} \mathrm{N} \rightarrow{ }_{\mathrm{B}}^{\mathrm{A}} \mathrm{L}+2 \beta^{+} \end{aligned} $$ The number of neutrons in the element $L$ is
The states of hybridization of boron and oxygen atoms in boric acid $\left(\mathrm{H}_3 \mathrm{BO}_3\right)$ are respectively
Cerium $(Z=58)$ is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?
Aluminium chloride exists as dimer, $\mathrm{Al}_2 \mathrm{Cl}_6$ in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives
Which one the following ions has the highest value of ionic radius?
One mole of magnesium nitride on the reaction with an excess of water gives
Which among the following factors is the most important in making fluorine the strongest oxidizing halogen?
Which one of the following has the regular tetrahedral structure?
Which one the following does not have $\mathrm{sp}^2$ hybridized carbon?
Which one of the following complexes in an outer orbital complex?
Which one the following has largest number of isomers?
The coordination number of central metal atom in a complex is determined by
The soldiers of Napolean army while at Alps during freezing winter suffered a serious problem as regards to the tin buttons of their uniforms. White metallic tin buttons got converted to grey powder. This transformation is related to
The correct order of magnetic moments (spin only values in B.M.) among is
The maximum number of $90^{\circ}$ angles between bond pair of electrons is observed in
Coordination compound have great importance in biological systems. In this context which of the following statements is incorrect?
Of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one of them?
Which one of the following aqueous solutions will exhibit highest boiling point?
A red solid is insoluble in water. However it becomes soluble if some $\mathrm{KI}$ is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is
Ammonia forms the complex ion $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}$ with copper ions in alkaline solutions but not in acidic solutions. What is the reason for it?
Which one of the following substances has the highest proton affinity?