UNIT 4: d- and f-Block Elements
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Actinoids differ from lanthanoids because:
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Lanthanoids show contraction due to:
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Transition metals are good conductors due to:
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KMnO₄ colour is:
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Oxidation state of Cr in K₂Cr₂O₇:
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Which has fully filled d-orbitals?
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Which is NOT transition metal?
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Transition metals form coloured compounds due to:
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Which shows highest oxidation state?
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Catalytic property due to:
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Maximum oxidation state depends on:
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d-block elements show:
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Colourless ion among these:
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Which is strongest oxidizing agent?
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Which has highest density?
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Cu⁺ is:
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Fe³⁺ is:
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Magnetic property depends on:
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Interstitial compounds are formed by:
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Transition metals form alloys due to:
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First actinoid element:
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Actinoid contraction is similar to:
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Most actinoids are:
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Actinoids show:
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Actinoids belong to:
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Cause of lanthanoid contraction:
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Number of lanthanoids:
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Lanthanoid contraction leads to:
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Common oxidation state of lanthanoids:
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Lanthanoids belong to:
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KMnO₄ is used in:
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Dichromate ion colour is:
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KMnO₄ in acidic medium gives:
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KMnO₄ is a:
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Colour of K₂Cr₂O₇ is:
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Lanthanoid contraction is due to:
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Which element shows +7 oxidation state?
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Highest oxidation state of Mn is:
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Ionization enthalpy of transition elements:
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Atomic radii across a period:
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Zn²⁺ is colourless because:
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Paramagnetism arises due to:
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Which property is NOT shown by transition metals?
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Colour in transition metals is due to:
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Transition metals have high melting points due to:
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f-block elements are also called:
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Transition elements belong to:
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Electronic configuration of Cu is:
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Which element shows exception in electronic configuration?
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The general electronic configuration of d-block elements is:
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