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प्रश्न
F2 has lower bond dissociation enthalpy than Cl2. Why?
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उत्तर
The size of a fluorine atom is very small as compared to a chlorine atom. Therefore, the repulsion between electrons in the outer most shell of the two atoms in a fluorine molecule is much greater than that in a chlorine molecule. Hence, it requires less energy to break up the fluorine molecule, making its bond dissociation energy lesser than that of chlorine molecule.
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संबंधित प्रश्न
Account for the following: Fluorine does not exhibit positive oxidation state.
Fluorine is a stronger oxidising agent than chlorine. Why?
Give two examples to show the anomalous behaviour of fluorine.
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Cl2 acts as a bleaching agent.
Which of the following pairs of ions are isoelectronic and isostructural?
Which of the following statements are true?
(i) Only type of interactions between particles of noble gases are due to weak dispersion forces.
(ii) Ionisation enthalpy of molecular oxygen is very close to that of xenon.
(iii) Hydrolysis of XeF6 is a redox reaction.
(iv) Xenon fluorides are not reactive.
Iodine has lowest oxidiation state in ______.
Give a reason for the following:
Mn+2 compounds are more stable than Fe+2 compounds.
