Why ch4 has a lower boiling point than cf4

Methane,CH4,has a lower boiling point than CF4 because it is a tetrahedral molecule with four equivalent C-H bonds. It's electronic structure is described by four bonding molecular orbitals (MOs) resulting from the overlap of the valence orbitals on C and H. The lowest energy MO is the result of the overlap of the 2s orbital on carbon with the in-phase combination of the 1s orbitals on the four hydrogen atoms.

It is a colorless, natural gas, and can breaks down atom creates CH3 with water vapor that Carbon tetrafluoride,CF4, don't have that has a high bond strength due to its nature of the carbon-fluorine bond and is a potent greenhouse gas.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na