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AAKASH SERIES-ELEMENTS OF D - BLOCK-EXERCISE - 5.2
- 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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- Acidified dichromate solution turns green when sodium sulphide is adde...
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- How lanthanides differ from actinides in their oxidation states?
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- Is any actinide has no electrons in 5f-subshell? If so name it.
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- What is actinoid contraction ?
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- Only chelate complexes of lanthanides are known, other complexes are l...
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- Basic nature of Lu(OH)(2) is less than that of La(OH)(3). Why?
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- Which lanthanide is synthetic? Write its electronic configuration.
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- Trivalent ions of Eu (Z = 63) and Tb (Z = 65) have same colours. Expla...
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- Eu^(2+) is good reductant, but Ce^(4+) is good oxidant. Explain.
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