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Among halogens, fluorine is least reacti...

Among halogens, fluorine is least reactive.

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Among halogens. iodine is least reactive.
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Why fluorine is most reactive?

Assertion (A) Among halogens fluorine is the best oxidation. Reason ( R) Fluorine is the most electronegative atom

Justify giving reaction that among halogens, fluorine is the best oxidant and among hydrohalic compounds, hydroiodic acid is the best reductant.

Among the halogens, fluorine differs considerably form the other members. The hydrides of halogens also differ in their properties. Florine differs form the order halogens due to:

Among the halogens, fluorine differs considerably form the other members. The hydrides of halogens also differ in their properties. Which of the following halogens do not form polyhalide ?

In group 17 of the periodic table, fluorine is more reactive than chlorine, and chlorine is less reactive than fluorine. Give reasons.

Which of the following is least reactive?

Assertion: Amongest the halogens, fluorine can oxidise the elements to the highest oxidation- state. Reason: Due to small size of fluoride ion, it is difficult to oxidise fluoride ion to fluorine. Hence reverse reaction takes place more easily.

Which among the following is the most reactive?

Which of the following is least reactive in a nucleophilic substiution reaction

ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-I)(Do not change the whole sentence)
  1. Nitrogen is an active non-metal.

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  2. Nitrogen forms pentahalides.

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  3. Boiling point of phosphine is higher than that of ammonia.

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  4. Phosphorus occus in free state.

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  5. Hydrogen sulfide is a monobasic acid in solution.

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  6. The number of valence electrons for each member of halogen family is e...

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  7. Members of the oxygen family are called halogens.

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  8. The ionization enthalpy of selenium is less than that of tellurium. Th...

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  9. Oxygen is the most electronegative element in the periodic table.

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  10. The oxidation state of fluorine can also be + 2. The given statement i...

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  11. Hydride of sulfur is more stable than that of oxygen. The given statem...

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  12. The bond energy of fluorine is more than that of chlorine.

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  13. At room temperature, all the elements of group 17 exist in the gaseous...

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  14. Among halogens, fluorine is least reactive.

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  15. Fluorine can be prepared by heating NaF and MnO2 with conc. sulfuric a...

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  16. Electron gain enthalpies of noble gases are negative.

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  17. No compounds of Kr and Xe are known.

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  18. Hydrogen fluoride is a better reducing agent than hydrogen bromide.

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  19. XeOF4 has .... geometry

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  20. The first noble gas compound was prepared by Ramsay.

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