Pair of transition metal ions having the same number of unpaired electrons 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

Arrange the following compounds in increasing order of their dipole moment : $\mathrm{HBr},{\mathrm{H}}_2\mathrm{S},{\mathrm{NF}}_3$ and ${\mathrm{CHCl}}_3$

Match the List - I with List - II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I (Classification of molecules based on octet rule) List - II (Example) (A) Molecules obeying octet rule (I) $\mathrm{NO},{\mathrm{NO}}_2$ (B) Molecules with incomplete octet (II) ${\mathrm{BCl}}_3,{\mathrm{AlCl}}_3$ (C) Molecules with incomplete octet with odd electron (III) ${\mathrm{H}}_2{\mathrm{SO}}_4,{\mathrm{PCl}}_5$ (D) Molecules with expanded octet (IV) ${\mathrm{CCl}}_4,{\mathrm{CO}}_2$ Choose the correct answer from the options given below:

Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules [internuclear axis in $z$-direction] ? A. $2{\mathrm{p}}_{\mathrm{z}}$ and $2{\mathrm{p}}_{\mathrm{x}}$ B. 2 s and $2{\mathrm{p}}_{\mathrm{x}}$ C. $3d_{xy}$ and $3d_{x^2-y^2}$ D. 2 s and $2{\mathrm{p}}_{\mathrm{z}}$ E. $2p_z$ and $3d_{x^2-y^2}$ Choose the correct answer from the options given below:

Which of the following statement is true with respect to ${\mathrm{H}}_2\mathrm{O},{\mathrm{NH}}_3$ and ${\mathrm{CH}}_4$ ? A. The central atoms of all the molecules are ${\mathrm{sp}}^3$ hybridized. B. The $\mathrm{H}-\mathrm{O}-\mathrm{H},\mathrm{H}-\mathrm{N}-\mathrm{H}$ and $\mathrm{H}-\mathrm{C}-\mathrm{H}$ angles in the above molecules are $104.5^{\circ },107.5^{\circ }$ and $109.5^{\circ }$, respectively. C. The increasing order of dipole moment is ${\mathrm{CH}}_{4}D.Both$\mathrm{H}_2 \mathrm{O}$ and $\mathrm{NH}_3$ are Lewis acids and $\mathrm{CH}_4$ is a Lewis base. E. A solution of $\mathrm{NH}_3$ in $\mathrm{H}_2 \mathrm{O}$ is basic. In this solution $\mathrm{NH}_3$ and $\mathrm{H}_2 \mathrm{O}$ act as Lowry-Bronsted acid and base respectively. Choose the correct answer from the options given below:

Given below are two statements : Statement (I) : Experimentally determined oxygen-oxygen bond lengths in the ${\mathrm{O}}_3$ are found to be same and the bond length is greater than that of a $\mathrm{O}=\mathrm{O}$ (double bond) but less than that of a single $(\mathrm{O}-\mathrm{O})$ bond. Statement (II) : The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond $(\mathrm{O}=\mathrm{O})$ but more than that of a single bond $(\mathrm{O}-\mathrm{O})$. In the light of the above statements, choose the correct answer from the options given below :

Consider ' n ' is the number of lone pair of electrons present in the equatorial position of the most stable structure of ${\mathrm{ClF}}_3$. The ions from the following with ' n ' number of unpaired electrons are A. ${\mathrm{V}}^{3+}$ B. ${\mathrm{Ti}}^{3+}$ C. ${\mathrm{Cu}}^{2+}$ D. ${\mathrm{Ni}}^{2+}$ E. ${\mathrm{Ti}}^{2+}$ Choose the correct answer from the options given below:

The molecules having square pyramidal geometry are

A molecule with the formula ${\mathrm{AX}}_4\mathrm{Y}$ has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among $\mathrm{A},\mathrm{X}$ and Y . Elements X and Y have first and second highest electronegativity values respectively among all the known elements. The shape of the molecule is:

Among ${\mathrm{SO}}_2,{\mathrm{NF}}_3,{\mathrm{NH}}_3,{\mathrm{XeF}}_2,{\mathrm{ClF}}_3$ and ${\mathrm{SF}}_4$, the hybridization of the molecule with nonzero dipole moment and highest number of lone-pairs of electrons on the central atom is

Consider the following molecules: The correct order of rate of hydrolysis is :

Match the List I with List II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I Molecule/Ion List - II Bond pair : lone pair (on the central atom) (A) ${\mathrm{ICl}}_2^{-}$ (I) $4:2$ (B) ${\mathrm{H}}_2\mathrm{O}$ (II) $4:1$ (C) $\mathrm{S}{\mathrm{O}}_2$ (III) $2:3$ (D) $\mathrm{Xe}{\mathrm{F}}_4$ (IV) $2:2$ Choose the correct answer from the options given below:

Which among the following molecules is (a) involved in ${\mathrm{sp}}^3\mathrm{d}$ hybridization, (b) has different bond lengths and (c) has lone pair of electrons on the central atom?

In SO2, NO2$-$ and N3$-$, the hybridizations at the central atom are respectively :

Given below are two statements :Statement (I) : is more polar than Statement (II) : Boiling point of is lower than but it is more polar than .In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements:Statement (I): For , all three possible structures may be drawn as follows. Statement (II): Structure III is most stable, as the orbitals having the lone pairs are axial, where the lp – bp repulsion is minimum.In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements. In the light of the above statements, choose the correct answer from the options given below:

Which of the following molecule(s) show/s paramagnetic behavior? A. ${\mathrm{O}}_2$ B. ${\mathrm{N}}_2$ C. ${\mathrm{F}}_2$ D. ${\mathrm{S}}_2$ E. ${\mathrm{Cl}}_2$ Choose the correct answer from the options given below:

Given below are two statements: Statement I : Wet cotton clothes made of cellulose based carbohydrate takes comparatively longer time to get dried than wet nylon polymer based clothes. Statement II : Intermolecular hydrogen bonding with water molecule is more in nylon-based clothes than in the case of cotton clothes. In the light of above statements, choose the correct answer from the options given below