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Among the oxyacids of halogens, the one ...

Among the oxyacids of halogens, the one with high percentage of oxygen is............

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`HClO_4`
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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-I)(OBJECTIVE QUESTIONS)(FILL IN THE BLANKS)
  1. The molecular formula of oxygen at ordinary temperature is .......... ...

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  2. Out of the elements in VIA (16) group ........ Exhibits the property o...

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  3. Oxidation state of oxygen is + 1 in .......... And +2 in ,.......

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  4. The hydride of sulfur is.......... Volatile than that of oxygen .

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  5. The various fluorides formed with sulfur are .........., and with tell...

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  6. Hydrogen fluoride is a........acid.

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  7. Chlorine element has +7 oxidation state in.......and + 1 in.......

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  8. Among the oxyacids of halogens, the one with high percentage of oxygen...

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  9. The higher value of bond energy for chlorine molecule than that of flu...

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  10. Sulfur forms......with fluorine.

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  11. The oxidation state of bromine inBrO2 and HBrO3 are ....... and .........

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  12. Which halogen has highest value of electron gain enthalpy?

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  13. Compounds formed by the union of two different halogens are called.......

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  14. Out of the halogen acids, HX, the one with the highest degree of ioniz...

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  15. (a) Draw the structures of the following : (i) XeF(4) (ii) H(2...

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  16. Halogens have high electron gain enthalpies because the addition of an...

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  17. The first noble gas compound was prepared by ............

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  18. XeOF4 has .... geometry

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  19. Noble gas used in the treatment of cancer is ..............

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  20. Clathrates are formed by noble gases other than ..... and.........

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