Chemistry Inorganic Chemistry questions from JEE Main 2006.
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
Among the following mixtures, dipole-dipole as the major interaction, is present in
In which of the following molecules/ions are all the bonds not equal?
A metal, $M$ forms chlorides in its $+2$ and $+4$ oxidation states. Which of the following statements about these chlorides is correct?