Inorganic Chemistry PYQ — Page 10

Match the LIST-I with LIST-II. $\begin{array}{|l|l|l|l|}\hline & \begin{array}{c} \text{LIST-I} \\ \text{(Family)} \end{array} & & \begin{array}{c} \text{LIST-II} \\ \text{(Symbol of Element)} \end{array} \\ \hline \text{A.} & \begin{array}{l} \text{Pnicogen} \\ \text{(group 15)} \end{array} & \text{I.} & \text{Ts} \\ \hline \text{B.} & \text{Chalcogen} & \text{II.} & \text{Og} \\ \hline \text{C.} & \text{Halogen} & \text{III.} & \text{Lv} \\ \hline \text{D.} & \text{Noble gas} & \text{IV.} & \text{Mc} \\ \hline\end{array}$ Choose the correct answer from the options given below :

The atomic number of the element from the following with lowest $1^{\text {st }}$ ionisation enthalpy is :

The d- electronic configuration of an octahedral Co(II) complex having magnetic moment of 3.95 BM is:

The successive 5 ionisation energies of an element are $800,2427,3658,25024$ and $32824 \mathrm{~kJ} / \mathrm{mol}$, respectively. By using the above values predict the group in which the above element is present :

' $X$ ' is the number of electrons in $t_{2 g}$ orbitals of the most stable complex ion among $\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_6\right]^{3+}$, $\left[\mathrm{Fe}\left(\mathrm{Cl}_6\right)\right]^{3-},\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$ and $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$. The nature of oxide of vanadium of the type $\mathrm{V}_2 \mathrm{O}_{\mathrm{X}}$ is:

The amphoteric oxide among $\mathrm{V}_2 \mathrm{O}_3, \mathrm{~V}_2 \mathrm{O}_4$ and $\mathrm{V}_2 \mathrm{O}_5$, upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is :

When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be :

The first transition series metal ' M ' has the highest enthalpy of atomisation in its series. One of its aquated ion $\left(\mathrm{M}^{\mathrm{n} \dagger}\right)$ exists in green colour. The nature of the oxide formed by the above $\mathrm{M}^{\mathrm{n}-}$ ion is :

Given below are two statements : Statement I : $\mathrm{CrO}_3$ is a stronger oxidizing agent than $\mathrm{MoO}_3$ Statement II : $\mathrm{Cr}(\mathrm{VI})$ is more stable than $\mathrm{Mo}(\mathrm{VI})$ In the light of the above statements, choose the correct answer from the options given below

Electronic configuration of four elements $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and D are given below : (A) $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^3$ (B) $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^4$ (C) $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^5$ (D) $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^2$ Which of the following is the correct order of increasing electronegativity (Pauling's scale)?

' X ' is the number of acidic oxides among $\mathrm{VO}_2$, $\mathrm{V}_2 \mathrm{O}_3, \mathrm{CrO}_3, \mathrm{~V}_2 \mathrm{O}_5$ and $\mathrm{Mn}_2 \mathrm{O}_7$. The primary valency of cobalt in $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{NCH}_2 \mathrm{CH}_2 \mathrm{NH}_2\right)_3\right]_2\left(\mathrm{SO}_4\right)_3$ is Y. The value of $\mathrm{X}+\mathrm{Y}$ is :

Number of stereoisomers possible for the complexes, $\left[\mathrm{CrCl}_3(\mathrm{py})_3\right]$ and $\left[\mathrm{CrCl}_2(\mathrm{ox})_2\right]^{3-}$ are respectively ( $\mathrm{py}=$ pyridine, $\mathrm{ox}=$ oxalate)

The correct orders among the following are Atomic radius : $\mathrm{B} \lt \mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{In} \lt \mathrm{Tl}$ Electronegativity : $\mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{In} \lt \mathrm{Tl} \lt \mathrm{B}$ Density : $\mathrm{Tl} \lt \mathrm{In} \lt \mathrm{Ga} \lt \mathrm{Al} \lt \mathrm{B}$ 1st Ionisation Energy : In $ \lt \mathrm{Al} \lt \mathrm{Ga} \lt \mathrm{Tl} \lt \mathrm{B}$ Choose the correct answer from the options given below :

The property/properties that show irregularity in first four elements of group-17 is/are : (A) Covalent radius (B) Electron affinity (C) Ionic radius (D) First ionization energy Choose the correct answer from the options given below:

The correct decreasing order of spin only magnetic moment values $(\mathrm{BM})$ of $\mathrm{Cu}^{+}, \mathrm{Cu}^{2+}, \mathrm{Cr}^{2+}$ and $\mathrm{Cr}^{3+}$ ions is :

Given below are two statements : Statement (I): According to the Law of Octaves, the elements were arranged in the increasing order of their atomic number. Statement (II): Meyer observed a periodically repeated pattern upon plotting physical properties of certain elements against their respective atomic numbers. In the light of the above statements, choose the correct answer from the options given below :

A transition metal \((\mathrm{M})\) among \(\mathrm{Mn}, \mathrm{Cr}, \mathrm{Co}\) and Fe has the highest standard electrode potential \(\left(\mathrm{M}^{3+} / \mathrm{M}^{2+}\right)\). It forms a metal complex of the type \(\left[\mathrm{M}(\mathrm{CN})_6\right]^{4-}\). The number of electrons present in the \(\mathrm{e}_{\mathrm{g}}\) orbital of the complex is _________.

The nature of oxide $\left(\mathrm{TeO}_2\right)$ and hydride $\left(\mathrm{TeH}_2\right)$ formed by Te , respectively are :

When a salt is treated with sodium hydroxide solution it gives gas $\mathrm{X}$. On passing gas $\mathrm{X}$ through reagent $\mathrm{Y}$ a brown coloured precipitate is formed. $\mathrm{X}$ and $\mathrm{Y}$ respectively, are

Which of the following statements are NOT true about the periodic table? A. The properties of elements are function of atomic weights. B. The properties of elements are function of atomic numbers. C. Elements having similar outer electronic configurations are arranged in same period. D. An element's location reflects the quantum numbers of the last filled orbital. E. The number of elements in a period is same as the number of atomic orbitals available in energy level that is being filled. Choose the correct answer from the options given below:

Match List - I with List - II. \(\begin{array}{ll} & \text { List - I } & & \text { List - II } \\ & \text { (Complex) } & & \text { (Hybridisation & Magnetic characters) } \\ \text{(A)} & \left[\mathrm{MnBr}_4\right]^{2-} & \text{(I)} & d^2 s^3 \text{ & diamagnetic} \\ \text{(B)} & \left[\mathrm{FeF}_6\right]^{3-} & \text{(II)} & \mathrm{sp}^3 \mathrm{~d}^2 \text{ & paramagnetic} \\ \text{(C)} & \left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-} & \text{(III)} & \mathrm{sp}^3 \text{ & diamagnetic} \\ \text{(D)} & \left[\mathrm{Ni}(\mathrm{CO})_4\right] & \text{(IV)} & \mathrm{sp}^3 \text{ & paramagnetic} \end{array}\) Choose the correct answer from the options given below :

Consider the following reactions $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\mathrm{KOH}}[\mathrm{A}] \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\mathrm{H}_2 \mathrm{SO}_4}[\mathrm{~B}]+\mathrm{K}_2 \mathrm{SO}_4$ The products $[A]$ and $[B]$, respectively are :

The complex of $\mathrm{Ni}^{2+}$ ion and dimethyl glyoxime contains ________ number of Hydrogen $(\mathrm{H})$ atoms.

The correct order of the complexes $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{H}_2 \mathrm{O}\right)\right]^{3+}$ (A), $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ (B), $\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}(\mathrm{C})$ and $\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}(\mathrm{D})$ in terms wavelength of light absorbed is :