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Arange the following oxides in the order...

Arange the following oxides in the order of their increasing basicity : `MnO, Mn_(2)O_(7), MnO_(2)`

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The oxidation of Mn in the given oxides are + 2, + 7 and + 4, respectively. The order of increasing basicity is : `Mn_(2)O_(7)lt MnO_(2)lt MnO`. The basicity of oxides made from the same element, increases with decrease in the oxidation number of the element.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)
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  2. Decide which of the given atomic numbers are the atomic numbers of the...

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  3. Arange the following oxides in the order of their increasing basicity ...

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  4. What do you mean by disproportionation reaction. Give two examples.

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  5. Why do transition metals form alloys easily ?

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  6. Transition elements form interstitial compounds. Why ?

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  7. In the quantitative volumetric analysis, why is K(2)Cr(2)O(7) preferre...

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  8. Name the product formed on heating potassium permanganate. Write the b...

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  9. Write the trends : Melting points of the transition elements in each s...

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  10. Write the trends : The atomic radius of the inner transition elements ...

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  11. What happens when KMnO(4) reacts with conc. HCl ?

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  12. What happens when hydrogen sulphide is added to acidified potassium di...

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  13. Explain why transition elements have many irregularities in their elec...

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  14. Explain why iron is a transition metal but sodium is not.

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  15. Chromium is a typical hard metal, while mercury is a liquid, Explain.

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  17. Why are the ionisation energies of 5d-metals greater than those of 3d-...

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  18. Explain why the paramagnetic character of the elements of first transi...

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  19. The 4d and 5d-series of transition metals have more frequent metal-met...

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  20. Explain why iron has higher melting point than copper.

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