$$\text{ Match the LIST-I with LIST-II }$$ .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-baqh{text-align:center;vertical-align:top} LIST-I (Molecules/ion) LIST-II (Hybridisation of central atom) A. $${\mathrm{PF}}_5$$ I $${\mathrm{dsp}}^2$$ B $${\mathrm{SF}}_6$$ II $${\mathrm{sp}}^3\mathrm{d}$$ C $$\mathrm{Ni}(\mathrm{CO}{)}_4$$ III $${\mathrm{sp}}^3{\mathrm{d}}^2$$ D $${\left[{\mathrm{PtCl}}_4\right]}^{2-}$$ IV $${\mathrm{sp}}^3$$ $$\text{ Choose the correct answer from the options given below: }$$

Match List - I with List - II. List - I (Complex) List - II (Primary valency and Secondary valency) (A) [Co(en)2Cl2]Cl (I) 3, 6 (B) [Pt(NH3)2Cl(NO2)] (II) 3, 4 (C) Hg [Co(SCN)4] (III) 2, 6 (D) [Mg (EDTA)]2− (IV) 2, 4 Choose the correct answer from the options given below :

' $X$ ' is the number of electrons in $t_{2g}$ orbitals of the most stable complex ion among ${\left[\mathrm{Fe}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+},{\left[{\mathrm{FeCl}}_6\right]}^{3-},{\left[\mathrm{Fe}{\left({\mathrm{C}}_2{\mathrm{O}}_4\right)}_3\right]}^{3-}$ 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 correct order of ${\left[{\mathrm{FeF}}_6\right]}^{3-},{\left[{\mathrm{CoF}}_6\right]}^{3-},\left[\mathrm{Ni}(\mathrm{CO}{)}_4\right]$ and ${\left[\mathrm{Ni}(\mathrm{CN}{)}_4\right]}^{2-}$ complex species based on the number of unpaired electrons present is:

The number of unpaired electrons responsible for the paramagnetic nature of the following complex species are respectively : [Fe(CN)6]3−, [FeF6]3−, [CoF6]3−, [Mn(CN)6]3−

'X' is the number of acidic oxides among VO2, V2O3, CrO3, V2O5 and Mn2O7. The primary valency of cobalt in [Co(H2NCH2CH2NH2)3]2(SO4)3 is Y. The value of X + Y is _________.

Which one of the following complexes will have ${\Delta }_{\mathrm{o}}=0$ and $\mu =5.96$ B.M?

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 $(p y=$ pyridine,$o x=$ oxalate $)$

Identify the diamagnetic octahedral complex ions from below ; A. ${\left[\mathrm{Mn}(\mathrm{CN}{)}_6\right]}^{3-}$ B. ${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$ C. ${\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]}^{4-}$ D. $\left[\mathrm{Co}{\left({\mathrm{H}}_2\mathrm{O}\right)}_3{\mathrm{F}}_3\right]$ Choose the correct answer from the options given below:

The molar solubility(s) of zirconium phosphate with molecular formula ${\left({\mathrm{Zr}}^{4+}\right)}_3{\left({\mathrm{PO}}_4^{3-}\right)}_4$ is given by relation :

Arrange the following in increasing order of solubility product : $\mathrm{Ca}(\mathrm{OH}{)}_2,\mathrm{AgBr},\mathrm{PbS},\mathrm{HgS}$

Which of the following happens when ${\mathrm{NH}}_4\mathrm{OH}$ is added gradually to the solution containing 1 M ${\mathrm{A}}^{2+}$ and $1\mathrm{M}{\mathrm{B}}^{3+}$ ions? Given : ${\mathrm{K}}_{\text{sp }}\left[\mathrm{A}(\mathrm{OH}{)}_2\right]=9\times 10^{-10}$ and ${\mathrm{K}}_{\mathrm{sp}}\left[\mathrm{B}(\mathrm{OH}{)}_3\right]=27\times 10^{-18}$ at 298 K.

pH of water is 7 at $25^{\circ }\mathrm{C}$. If water is heated to $80^{\circ }\mathrm{C}$., it's pH will :

${\mathrm{K}}_{\mathrm{sp}}$ for $\mathrm{Cr}(\mathrm{OH}{)}_3$ is $1.6\times 10^{-30}$. What is the molar solubility of this salt in water?

A weak acid HA has degree of dissociation x . Which option gives the correct expression of ( pH - ${\mathrm{pK}}_{\mathrm{a}}$)?

If equal volumes of $A{B}_2$ and $X Y$ (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of ${\mathrm{AY}}_2$ at 300 K ? (Given ${\mathrm{K}}_{\mathrm{sp}}($ at 300 K ) for ${\mathrm{AY}}_2=5.2\times 10^{-7}$ )

An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution would $($ Given $\log 2=0.30)$

40 mL of a mixture of ${\mathrm{CH}}_3\mathrm{COOH}$ and HCl (aqueous solution) is titrated against 0.1 M NaOH solution conductometrically. Which of the following statement is correct?

For hydrogen like species, which of the following graphs provides the most appropriate representation of E vs Z plot for a constant n? [E : Energy of the stationary state, Z : atomic number, n = principal quantum number]

Given below are two statements : Statement (I): It is impossible to specify simultaneously with arbitrary precision, both the linear momentum and the position of a particle. Statement (II) : If the uncertainty in the measurement of position and uncertainty in measurement of momentum are equal for an electron, then the uncertainty in the measurement of velocity is $⩾\sqrt{\frac{h}{\pi }}\times \frac{1}{2m}$. In the light of the above statements, choose the correct answer from the options given below :