# Solution - General Properties of the Transition Elements (D-block)

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#### Question

Why is Sc3+ colourless while Ti3+ coloured? (Atomic number Sc = 21, Ti =22)

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 E_((M^(2+) Cr Mn Fe Co Ni Cu -0.91 -1.18 -0.44 -0.28 -0.25 -0.34

From the given data of E0 values, answer the following questions :







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Use Hund’s rule to derive the electronic configuration of Ce3+ ion and calculate its magnetic moment on the basis of ‘spin-only’ formula.

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Explain giving reasons:  Transition metals and their many compounds act as good catalyst.

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Account for the following:

Cr+2 is a strong reducing agent

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Account for the following :

The E° value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+ couple.

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Solution for concept: General Properties of the Transition Elements (D-block). For the courses 12th HSC Science (Computer Science), 12th HSC Science (Electronics), 12th HSC Science (General)
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