Explain why transition metals form compl...

Explain why transition metals form complex compounds.

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d-d transition, charge transfer, structural defect.

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(a) Account for the following : (i) Cu^(+) is unstable in an aqueous solution. (ii) Transition metals form complex compounds. (b) Complete the following equation: Cr_(2)O_(7)^(2-)+8H^(+)+3NO_(2)^(-)rarr

Explain why transition metals and their many compounds act as good catalyst.

Explain why : Transition metals and their compounds act as catalyst.

Explain why : Transition elements form alloys.

Explain why: (i) Transition elements form coloured compounds. (ii) Cu^(+) is diamagnetic but Cu^(2+) is paramagnetic (Z=29)

Colour of compounds occurs due to phenomenon of polarisation, charge transfer, d-d transition and H.O.M.O.L.U.M.O transition. Most of the transition metal transition metal complex compound are coloured either due to d-d electrons transition or charge transfer and ionic compounds are coloured due to polarisation of anion. Q. Which of the following is correct about KFe^(II)[underset(III)(Fe)(CN_(6))] and KFe^(III)[underset(II)(Fe)(CN_(6))] complex compounds?

Colour of compounds occurs due to phenomenon of polarisation, charge transfer, d-d transition and H.O.M.O.L.U.M.O transition. Most of the transition metal transition metal complex compound are coloured either due to d-d electrons transition or charge transfer and ionic compounds are coloured due to polarisation of anion. Q. If MCl_(4) salt is white, then comment on colour of its iodine salt.

The tendency of the transition elements to form coloured compounds is attributed to

Explain gives reason. (a) Transition metal and many of their compounds show paramagnetic behavior. (b) The enthalpies of atomisation of the transition metal are high . (c) The transition metals generally from coloured compounds.

What are transition elements ? Explain that transition metal compounds are generally: (a) coloured (b) act as catalysts (c) show variable oxidation states. (d) form complexes (e) have high m.pt. and b.pt.

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