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प्रश्न
Account for the following:
Fluorine forms only one oxoacid HOF.
Explain why fluorine forms only one oxoacid, HOF.
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उत्तर
- The most electronegative element is fluorine, which only exists in the −1 oxidation state as opposed to other halogens, which can also exist in the +1, +3, +5, and +7 states.
- This is because it cannot excite its ns or np electron pairs in the absence of unoccupied orbitals.
- It also has a relatively small atomic size. As a result, it only forms one oxoacid, HOF, and cannot exist as a core atom in higher oxoacids of the types HOXO, HOXO2, and HOXO3.
- The O.S. of fluorine in this addition is −1.
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संबंधित प्रश्न
Write chemical formula of the following oxoacids of chlorine:
a. Hypochlorous acid
b. Chlorous acid
c. Chloric acid
d. Perchloric acid
Draw the structures of the following:
(1) HClO4
(2) H3PO3
Draw the structures of the HClO3.
Arrange the following oxyacids of chlorine in decreasing order of their thermal stability. Give reason.
HOClO, HOCl, HClO4, HOClO2
The increasing order of reducing power of the halogen acids is:
Which one of the following order is correct for the bond dissociation enthalpy of halogen molecule?
Assertion: HI cannot be prepared by the reaction of KI with concentrated H2SO4.
Reason: HI has the lowest H-X bond strength among halogen acids.
A black compound of manganese reacts with a halogen acid to give greenish-yellow gas. When excess of this gas reacts with \[\ce{NH3}\] an unstable trihalide is formed. In this process the oxidation state of nitrogen changes from ______.
Explain why the stability of oxoacids of chlorine increases in the order given below:
\[\ce{HClO < HClO2 < HClO3 < HClO4}\]
Assertion: \[\ce{HI}\] cannot be prepared by the reaction of KI with concentrated \[\ce{H2SO4}\]
Reason: \[\ce{HI}\] has lowest \[\ce{H - X}\] bond strength among halogen acids.
Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?
Which among the following factors is the most important in making fluorine, the strongest oxidizing halogen?
