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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- Write the electronic configurations of Fe^(2+) and Fe^(3+). which of t...
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- Explain :Transition elements exhibit variable oxidation states.
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- What are the main consequences of lanthanoid contraction ?
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- Complete the following chemical equation : KMnO4 overset (513K) rarr
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- Complete the following chemical equation : MnO2+ KOH + O2 rarr
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- Does actinoids show actinoid contraction similar to lanthanoid contrac...
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- Transition metals form mostly coloured compounds.Explain.
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- Complete the following chemical equation : MnO4^(-)(aq) + H2O2(aq)+ H^...
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- Give the preparation of Potassium Permanganate from Pyrolusite ore.
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- Explain how the colour of a solution of K2Cr2O7 depends on the pH of t...
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- Explain, giving reasons, which one of the following pairs exhibits the...
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- Explain, giving reasons, which one of the following pairs exhibits the...
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- Write chemical reaction for preparation of K2Cr207 from chromite ore.
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- Why is Copper considered as transition metal ?
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- Calculate the number of unpaired electrons in the following gaseous io...
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- State what happens when a solid mixture of KCl and K2Cr2O7 is heated w...
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- To what extent do the electronic configurations decide the stability o...
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- Why are Mn^(2+) compounds more stable than Fe^(2+) compounds towards o...
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- Write the name of metal which shows only +3 oxidation state.
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- What is lanthanoid contraction ?
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