Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
KCET2016Chemistryp Block Elements (Group 15, 16, 17 & 18)

The property which is not true about Fluorine is,

Options

  1. AMost of its reactions are exothermic.
  2. BIt forms only one oxo acid.
  3. CHighest electronegativity.
  4. DHigh F-F bond dissociation enthalpy.

Correct answer

D. High F-F bond dissociation enthalpy.

Step-by-step solution

Most of the reaction of fluorine is exothermic because fluorine in its elemental state is the most electronegative element in the periodic table. Due to its highest electronegativity, its bond dissociation enthalpy is low. HOF is the only oxoacid of fluorine.

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Which among the following is NOT in accordance with the property stated against it? 2026Complete hydrolysis of Xenon hexafluoride gives HF along with compound X. The hybridisation in X is 2025Orthophosphorus acid on disproportionation gives PH ₃ and another oxoacid of phosphorus ' X '. The basicity of X is 2025Observe the following P ₄+ SOCl ₂ Products P ₄+ SO ₂ Cl ₂ Products In both the reactions, a common product ' x ' is obtained. The number of lone pair of elecrons on the central ato 2025The number of P = O , P - P bonds present in oxoacid of phosphorus, prepared by treating red P ₄ with alkali are respectively 2025Which of the following is not correct? 2025Nature of two oxides of nitrogen X and Y formed in the reaction of sodium nitrite with hydrochloric acid is 2025Which of the following is not correct ? 2025 Full p Block Elements (Group 15, 16, 17 & 18) list All KCET PYQs