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DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Assignment
- Explain why Zn^(2+) salts are colouless while Ni^(2+) salts are colour...
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- Why are Mn^(2+) compounds more stable than Fe^(2+) toward oxidation to...
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- Why are Zn, Cd and Hg quite soft and have low melting points ?
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- Why are Cd^(2+) salts white ?
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- Why Zn, Cd and Hg are not considered as typical transitions elements ?
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- Describe the trends in the following properties of the first series of...
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- Explain the following observation about the transition elements. (i)...
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- Among the divalent cations in the first transition series, manganese e...
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- Describe the general characteristics of transition elements with speci...
01:53
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- Name the elements of 3d series. Give their electronic configuration. E...
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- How would you account for the following : (i) Cr^(2+) is reducing i...
02:12
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- State the reason for the following : (i) Cu (I) ion is not stable in...
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- Explain the following : (i) Cu^(+) is colourless and Cu^(2+) is colo...
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- Why do transition metals form coloured complexes ?
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- Silver atom has completely filled d orbitals (4d^(10)) in its ground s...
02:06
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- Zn^(2+) salt are white while Cu^(2+) salts are blue. Assign reason.
03:18
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- What are Interstitial compunds ? Give an example.
02:08
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- Explain the following : (i) Most of the transition elements show var...
02:41
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- (i) What are intersitial compounds ? Give their general characteristic...
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- (i) What are transition elements ? (ii) Why do transition elements s...
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