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Which has the highest density ? Al, Mg, ...

Which has the highest density ? Al, Mg, Cu, Ni, Fe

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Density of transition elements (Ni, Cu, Fe) is greater than that of the representative elements (Al, Mg). Again, for transition elements of the same series, with increase in atomic number, density increases. Hence, Cu has the highest density.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. Give one use each of niobium and tantalum.

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  2. Among Fe^(2+) and Fe^(3+), which is more stable ? Why ?

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  3. Which bivalent transition metal ion in the 3d-series is the most param...

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  4. Why is the ionic radius of Fe^(2+) less than that of Mn^(2+) ?

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  5. Name a lanthanoid that exhibits + 4 oxidation state.

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  6. Why is KMnO(4) kept in dark coloured bottles ?

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  7. What happens when the pH of K(2)Cr(2)O(7) solution is increased ? Give...

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  8. Classify the following as d-block elements, lanthanoids and actinoids ...

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  9. Which has the highest density ? Al, Mg, Cu, Ni, Fe

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  10. Substances made of copper form green coloured coating when left in moi...

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  11. The extent of actinoid contraction is more than lanthanoid contraction...

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  12. Which element is used as a 'bone nail' in surgery ?

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  13. Write the ionic equation of the disproportionation reaction of CrO(4)^...

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  14. Transition metal ions have high hydration enthalpy. Explain why ?

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  15. Name the elements of the first transition series with the highest and ...

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  16. Name the transition elements with the highest and the lowest density.

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  17. Why are transition elements poor reducing agents ?

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  18. Calculate 'spin only' magnetic moment of Fe^(3+) ion.

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  19. Which elements are called ferrous metals ?

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  20. Which elements are called platinum metals ?

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