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AAKASH SERIES-ELEMENTS OF D - BLOCK-EXERCISE - 5.2
- How heat of atomisation changes in 3d-series elements are stable?
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- Why copper(I) compounds undergo disproportionation in aqueous solution...
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- Transition elements exhibit their highest oxidation states in oxides a...
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- Among Fe^(2+) and Cr^(2+), which is stronger reductant? Why?
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- Ni^(2+) is more stable than Pt^(2+), but Pt^(4+) is more stable than N...
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- Ferrous oxalate is used in developing black and white photographic fil...
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- In 3d-series which element has positive E(M^(2+)//M)^(@) value? Why?
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- Fe^(3+) can oxidise halide ions. Discuss.
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- Why calculated magnetic moment of Co^(2+) is less than the experimenta...
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- Mn^(x+) has a magnetic moment of 4.9 BM. Calculate the value of x in t...
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- A salt of 3d metal gave a white precipitate with NH(4)OH, but dissolve...
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- What is the percentage of number of ferro ions in the non-stoichiometr...
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- Addition of appreciable amount KMnO(4) in conc. H(2)SO(4) explodes. Ex...
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- An aqueous solution of Al(2)(SO(4))(3),FeSO(4) and chrome alum is heat...
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- E^(@) for Mn^(3+), Mn^(2+) is more positive than that for Fe^(3+), Fe^...
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- Amongest the bivalent ions of 3d-elements, Mn(II) shows maximum parama...
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- Copper is regarded as transition metal, though it has completely fille...
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- Compounds of iron are coloured and paramagnetic. Explain.
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- In 3d-series which element cannot displace hydrogen gas from dilute ac...
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- Mn^(3+) is less stable than Mn^(2+) and Mn^(4+) ions. Why?
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