JEE Main Chemistry — Inorganic Chemistry previous year questions with solutions.
‘ $X$ ’ melts at low temperature and is a bad conductor of electricity in both liquid and solid state. $X$ is:
If the magnetic moment of a di-oxygen species is $1.73 B.M.$, it may be
Of the species, $\mathrm{NO},{\mathrm{NO}}^{+},{\mathrm{NO}}^{2+}$ and ${\mathrm{NO}}^{-},$ the one with minimum bond strength is :
The one that is not expected to show isomerism is:
The correct order of the spin-only magnetic moments of the following complexes is: $(I)$ $[Cr{({H}_{2}O)}_{6}]B{r}_{2}$ $(II)$ $N{a}_{4}[Fe{(CN)}_{6}]$ $(III)$ $N{a}_{3}[Fe{({C}_{2}{O}_{4})}_{3}]({\Delta }_{0}>P)$ $(IV)$ ${(E{t}_{4}N)}_{2}[CoC{l}_{4}]$
The potential energy curve for the ${H}_{2}$ molecule as a function of internuclear distance is:
The dipole moments of $CC{l}_{4},CHC{l}_{3}$ and $C{H}_{4}$ are in the order
Considering that ${\Delta }_{0}>P$, the magnetic moment (in BM) of ${[\mathrm{Ru}{({H}_{2}O)}_{6}]}^{2+}$ would be
On heating, lead (ll) nitrate gives a brown gas (A). The gas (A) on cooling changes to a colourless solid/liquid (B). (B) on heating with NO changes to ablue solid (C). The oxidation number of nitrogen in solid (C) is:
For octahedral $\mathrm{Mn}(\mathrm{II})$ and tetrahedral $\mathrm{Ni}(\mathrm{II})$ complexes, consider the following statements : $(I)$ both the complexes can be high spin. $(\mathrm{II})$ $\mathrm{Ni}(\mathrm{II})$ complex can very rarely be of low spin. $(\mathrm{III})$ with strong field ligands, $\mathrm{Mn}(\mathrm{II})$ complexes can be low spin. $(\mathrm{IV})$ aqueous solution of $\mathrm{Mn}(\mathrm{II})\mathrm{ions}$ is yellow in color. The correct statements are :
The electron gain enthalpy (in $\frac{\mathrm{kJ}}{mol}$ ) of fluorine, chlorine, bromine and iodine, respectively, are
The complex that can show optical activity is :
The Crystal Field Stabilization Energy $(\mathrm{CFSE})$ of $[\mathrm{CoF}({H}_{2}O)33]({\Delta }_{0}<P)$ is :
Among the compounds $A$ and $B$ with molecular formula ${C}_{9}{H}_{18}{O}_{3},$ $A$ is having higher boiling point than $B.$ The possible structures of $A$ and $B$ are:
The INCORRECT statement is :
If ${\mathrm{AB}}_{4}$ molecule is a polar molecule, a possible geometry of ${\mathrm{AB}}_{4}$ is :
The shape of XeF₄ molecule is:
The elements with atomic numbers $101$ and $104$ belong to, respectively:
In the following reactions, products $(A)$ and $(B)$ , respectively, are: $NaOH+C{l}_{2}\rightarrow (A)+sideproducts$ $(hotandconc.)$ $Ca{(OH)}_{2}+C{l}_{2}\rightarrow (B)+sideproducts$ $(dry)$
The reaction of $\mathrm{NO}$ with ${N}_{2}{O}_{4}$ at $250K$ gives :
The number of $\mathrm{Cl}=O$ bonds in perchloric acid is, $"\ldots \ldots \ldots ..."$
Reaction of ammonia with excess $C{l}_{2}$ gives :
Three elements $X,Y$ and $Z$ are in the ${3}^{\text{rd }}$period of the periodic table. The oxides of$X,Y$ and $Z$, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of $X,Y$ and $Z$ is:
Complexes $(M{L}_{5})$ of metals $Ni$ and $Fe$ have ideal square pyramidal and trigonal bipyramidal geometries, respectively. The sum of the ${90}^{o},{120}^{o}$ and ${180}^{o}$ $L-M-L$ angles in the two complexes is_______