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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- Explain why [Ti (H2O)6]^(3+) is violet while [Ti (H2O)6]^(4+) is colou...
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- Transition metals form alloys with other transition metals. Explain.
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- What are the main consequences of lanthanoid contraction ?
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- What happens when K2Cr2O7 reacts with NaCl in the presence of conc. H2...
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- What happens when Acidified KMnO4 reacts with H2S?
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- Explain why TiCl3 is coloured but TiCl4 is colourless ?
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- Why transition metals show catalytic properties?
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- Compare the chemistry of actinides with that of the lanthanides with...
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- Why are Mn^(2+) compounds more stable than Fe^(2+) compounds towards o...
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- Why transition elements form a large number of alloys ?
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- Write chemical reaction for preparation of K2Cr207 from chromite ore.
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- What are the main consequences of lanthanoid contraction ?
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- Why transition metals show catalytic properties?
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- Out of Ag^+ and Co^(2+) which one will be coloured and why? (Atomic nu...
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- Why is + 4 oxidation state of titanium more stable than its +3 state? ...
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- Is Zinc (At. No. 30) a transition element ?
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- Give the comparison of lanthanides and actinides.
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- Express 1368 in roman numbers.
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- Express 1370 in roman numbers.
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- Express 1371 in roman numbers.
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