Q.

Identify the correct combination

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a

(I) (iii) (S)

b

(II) (ii) (P)

c

(III) (i) (Q)

d

(IV) (iv) (R)

answer is D.

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Detailed Solution

In KMnO4 Mn has d3s configuration and its colour is due to charge transfer.NiCO4 is colourless liquid at room temperature and there is p bond between Ni  and C due to synergic bonding FeH2O6SO4 is coloured due to d-d transition and is paramagnetic in nature.In K4FeCN6 Fe is d2sp3 hybridized and is diamagnetic
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Identify the correct combination