NEET UG Chemistry — Inorganic Chemistry previous year questions with solutions.
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of +2 oxidation state will be there in which of the following order? (At. no. $\mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26, \mathrm{Co}=27$ )
What is the value of electron gain enthalpy of $\mathrm{Na}^{+}$if $\mathrm{IE}_1$ of $\mathrm{Na}=5.1 \mathrm{eV}$ ?
Name the type of the structure of silicate in which one oxygen atom of $\left[\mathrm{SiO}_4\right]^{4-}$ is shared?
The correct order of increasing bond length of $\mathrm{C}-\mathrm{H}, \mathrm{C}-\mathrm{O}, \mathrm{C}-\mathrm{C}$ and $\mathrm{C}=\mathrm{C}$ is
The pairs of species of oxygen and their magnetic behaviours are noted below. Which of the following presents the correct description?
Which of the two ions from the list given below, have the geometry that is explained by the same hybridisation of orbitals, $\mathrm{NO}_2^{-}, \mathrm{NO}_3^{-}, \mathrm{NH}_2^{-}, \mathrm{NH}_4^{+}, \mathrm{SCN}^{-}$?
Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. no. : $\mathrm{Ti}=22, \mathrm{Cr}=24$, $\mathrm{Co}=27, \mathrm{Zn}=30$ )
The d-electron configurations of $\mathrm{Cr}^{2+}, \mathrm{Mn}^{2+}$, $\mathrm{Fe}^{2+}$ and $\mathrm{Co}^{2+}$ are $d^4, d^5, d^6$ and $d^7$ respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. no. $\mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26, \mathrm{Co}=27$ )
Which of the following has the minimum bond length?
Which of the following pairs of metals is purified by van Arkel method?
The complex, $\left[\mathrm{Pt}(\mathrm{Py})\left(\mathrm{NH}_3\right) \mathrm{BrCl}\right]$ will have how many geometrical isomers?
Which of the following structures is the most preferred and hence of lowest energy for $\mathrm{SO}_3$ ?
If $n=6$, the correct sequence for filling of electrons will be
Which of the following oxide is amphoteric?
Which of the following carbonyls will have the strongest $\mathrm{C}-\mathrm{O}$ bond?
Which of the following elements is present as the impurity to the maximum extent in the pig iron?
Of the following complex ions, which is diamagnetic in nature?
Considering the state of hybridisation of carbon atoms, find out the molecule among the following which is linear.
Which one of the following complexes is not expected to exhibit isomerism?
Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements $\mathrm{O}, \mathrm{S}, \mathrm{F}$ and $\mathrm{Cl}$ ?
Which one of the following compounds is a peroxide?
The tendency of $\mathrm{BF}_3, \mathrm{BCl}_3$ and $\mathrm{BBr}_3$ to behave as Lewis acid decreases in the sequence
Oxidation states of $\mathrm{P}$ in $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_5, \mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$, $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_7$, are respectively
In which of the following pairs of molecules/ions, the central atoms have $\mathrm{sp}^2$ hybridisation?