Select the correct code of TRUE and FALSE for given statements :
(a) Peroxide ion as well as dioxygen molecule both are paramagnetic species
(b) In set of isomers, [Cr(H2O)6]Cl3 and [CrCl(H2O)5]

Question

Select the correct code of TRUE and FALSE for given statements :
(a) Peroxide ion as well as dioxygen molecule both are paramagnetic species
(b) In set of isomers, [Cr(H2O)6]Cl3 and [CrCl(H2O)5]Cl2.H2O, both compounds can easily loose water molecule on treatment with conc. H2SO4
(c) During transformation NO $\rightarrow$ NO^+, bond length and magnetic behaviour decreases
(d) An ether is more volatile than alcohol both having same molecular formula

Prashant Kotian · Accepted Answer

Correct answer: A. Step 1: Titanium has an atomic number of 22 and valence configuration [Ar] 3d^2 4s^2. Step 2: For the complex to show a zero magnetic moment (diamagnetic), Titanium must have no unpaired d-electrons, corresponding to a d^0 configuration. Step 3: A d^0 configuration requires Titanium to be in its +4 oxidation state (Ti^4+). This matches the formula [Ti(H2O)6]Cl4, which is option (b).

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