JEE Main 2015 — Inorganic Chemistry

After understanding the assertion and reason, choose the correct option. Assertion: In the bonding molecular orbital (MO) of ${\text{H}}_{2} ,$ electron density is increased between the nuclei. Reason: The bonding MO is ${\text{ψ}}_{\text{A}}+{\text{ψ}}_{\text{B}}$ , which shows destructive interference of the combining electron waves.

An aqueous solution of a salt X turns blood red on treatment with $SC{N}^{-}$ and blue on treatment with ${K}_{4}[Fe{(CN)}_{6}]$ , X also gives a positive chromyl chloride test. The salt X is:

Chlorine water on standing loses its color and forms:

In the long form of the periodic table, the valence shell electronic configuration of $5{s}^{2}5{p}^{4}$ corresponds to the element present in:

Match the catalysts to the correct process. <table class="pyq-table"><tbody><tr><td></td><td>Catalyst</td><td></td><td>Process</td></tr><tr><td>A.</td><td>$TiC{l}_{3}$</td><td>i.</td><td>Wacker process</td></tr><tr><td>B.</td><td>$PdC{l}_{2}$</td><td>ii.</td><td>Ziegler – Natta polymerisation</td></tr><tr><td>C.</td><td>$CuC{l}_{2}$</td><td>iii.</td><td>Contact process`</td></tr><tr><td>D.</td><td>${V}_{2}{O}_{5}$</td><td>iv.</td><td>Deacon’s process</td></tr></tbody></table>

Molecule AB has a bond length of $1.617 Å$ and a dipole moment of 0.38 D. The fractional charge on each atom(absolute magnitude) is: $({e}_{0}=4.802\times {10}^{-10} esu)$

The cation that will not be precipitated by ${H}_{2}S$ in the presence of dil HCl is:

The colour of $KMn{O}_{4}$ is due to: [where $\text{M}\rightarrow$ metal, $\text{L}\rightarrow$ ligand]

The correct statement on the isomerism associated with the following complex ions. (a) ${[Ni{({H}_{2}O)}_{5}N{H}_{3}]}^{2+}$ (b)${[Ni{({H}_{2}O)}_{4}{(N{H}_{3})}_{2}]}^{2+}$ and (c) ${[Ni{({H}_{2}O)}_{3}{(N{H}_{3})}_{3}]}^{2+}$ is:

The ionic radii $(\text{in} Å)$ of ${N}^{3-}, {O}^{2-}$ and ${F}^{-}$ are respectively:

The least number of oxyacids are formed by:

The number of geometric isomers that can exist for square planar ${[Pt(Cl)(py)(N{H}_{3})(N{H}_{2}OH)]}^{+}$ is (py = pyridine):

The shape of $XeO{F}_{4}$ by VSEPR theory is:

When concentrated $\mathrm{HCl}$ is added to aqueous solution of $CoC{l}_{2}$, its colour changes from reddish pink to deep blue. Which complex ion gives blue colour in reaction?

Which among the following is the most reactive?

Which compounds exhibits maximum dipole moment among the following?

Which molecule/ion among the following cannot act as a ligand in complex compounds?

Which of the following complex ions has electrons that are symmetrically filled in both ${t}_{2g}$ and ${e}_{g}$ orbitals?

Which of the following compounds has a $P-P$ Bond?

Which of the following statements is/are false?

Which one has the highest boiling point?

Which one of the following compounds is not a yellow colored compound ?