Explain giving a reason for each of the following situation:
(i) In aqueous medium, HCl is a stronger acid than HF.
(ii) White phosphorus is more reactive than red phosphorous.
(i) Because bond dissociation enthalpy of H—Cl is lower than H—F.
(ii) White phosphorus is more reactive than red phosphorus due to its discrete tetrahedral structure and angular strain. Red phosphorus is less reactive due its polymeric structure.
We find area when a region covered by a boundary, such as outer and inner surface area of a cylinder, a cone, a sphere and surface of wall or floor.
When...
(d) : Higher is the oxidation state of the central atom, greater is the acidity.
Hence, HClO4 is a stronger acid than HClO3. HNO3 is a stronger acid than HNO2.
Now, greater is...
(i) It is due to
(a) Intermolecular hydrogen bonding in HF.
(b) Higher H—F bond dissociation enthalpy than H—Cl.
(ii) As P—P single bond (213 kJ mol-1) in P4 is much weaker than...
Hcl is a covalent compound and has no ion but when dissolve into solution it under go dissociation and produce ions in the solution and hence conduct electricity.
(b) Formic acid is stronger than acetic acid due to its chemical composition. Formic acid is an organic acid as well as active acid in an organic acid.
(a) BF3 due to greater electronegativity of fluorine it withdraws more electrons from central 'B' atom
(b) Sn+4 Greater is the charge on the ion greater is its Lewis acidic strength