JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
The coordination number and the oxidation state of the element ' $\mathrm{E}$ ' in the complex $\left[\mathrm{E}(\mathrm{en})_2\left(\mathrm{C}_2 \mathrm{O}_4\right)\right] \mathrm{NO}_2$ (where (en) is ethylene diamine) are, respectively,
Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being
In which of the following octahedral complexes of Co (at. no. 27), will the magnitude of $\Delta_{\circ}$ be the highest?
Which of the following hydrogen bonds is the strongest?
Which one of the following has a square planar geometry?
Which of the following species exhibits the diamagnetic behaviour?
Which of the following nuclear reactions will generate an isotope?
The stability of dihalides of $\mathrm{Si}, \mathrm{Ge}, \mathrm{Sn}$ and $\mathrm{Pb}$ increases steadily in the sequence
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizinig order of the polarizing power of the cationic species, $\mathrm{K}^{+}, \mathrm{Ca}^{2+}, \mathrm{Mg}^{2+}, \mathrm{Be}^{2+}$ ?
In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?
Identify the incorrect statement among the following
Identify the incorrect statement among the following
The actinoids exhibits more number of oxidation states in general than the lanthanoids. This is because
Which of the following molecules/ions does not contain unpaired electrons?
The IUPAC name for the complex $\left[\mathrm{Co}\left(\mathrm{NO}_2\right)\left(\mathrm{NH}_3\right)_5\right] \mathrm{Cl}_2$ is
Nickel $(Z=28)$ combines with a uninegative monodentate ligand $\mathrm{X}^{-}$to form a paramagnetic complex $\left[\mathrm{NiX}_4\right]^{2-}$. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively
The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is
Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture?
Which of the following chemical reactions depicts the oxidizing behaviour of $\mathrm{H}_2 \mathrm{SO}_4$ ?
What products are expected from the disproportionation reaction of hypochlorous acid?
The decreasing values of bond angles from $\mathrm{NH}_3\left(106^{\circ}\right)$ to $\mathrm{SbH}_3\left(101^{\circ}\right)$ down group-15 of the periodic table is due to
How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a $\mathrm{Ca}^{2+}$ ion?
Lanthanoid contraction is caused due to
In $\mathrm{Fe}(\mathrm{CO})_5$, the $\mathrm{Fe}-\mathrm{C}$ bond possesses