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MODERN PUBLICATION-D-AND F-BLOCK ELEMENTS-EXERCISE
- Why Fe^3+ is more stable than Fe^2+ ?
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- Indicate the steps in the preparation of K2Cr2O7 from chromite ore.
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- Write steps involved in the preparation of KMnO(4).
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- BiCl(3), is more stable than BiCl(5) Why?
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- The transition element with least atomic number is:
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- Transition metals in their compounds show:
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- Pb shows oxidation state of
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- Which of the two have almost similar size :
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- Why Zn^2+ salts are white while Ni^2+ and Cu^2+ salts are coloured ?
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- Complete the following chemical equations : XeF(2)+PF(5)to
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- The electronic configuration of Ag atom is :
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- Which First row transition element exhibits stable +1 oxidation state
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- Which of the following ion is colourless in aqueous solution ?
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- Describe the preparation of potassium dichromate from iron chromite or...
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- What is lanthanide contraction? Write any two of its consequences.
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- What are the transition elements?
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- Discuss the general characteristics properties of transition elements.
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- Physical properties of :
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- Densities of transition metals are:
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- Transition metals in their compounds show:
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