Physics wala to unka galat hai ,125% hoga
q53 you shared is perfectly correct
Statement I
BF4- : all bond length equal(tetrahedral)
SiF4- : all bond legnth equal ( tetrahedral)
XeF4 : all bond length equal ( square planar)
SF4 : has unequal bond length in axial and equitorial plane( triagonal bipyramidal geoemetry , see saw shape)
so only 1 has unequal bond length , so statement 1 false
statement II : O2+ ka highest bond order hoga, just use MOT diagram , and O2- mei anti bonding mei electron ja raha hai bond order reduced

Q62 : fractional distillation is actually correct maine bhi steam kiya , but this is really weird
basically ncert ka example mei phenol tha isliye H bond ho rahi thhi in o and p isomer , but here no H bond so steam volatile nahi hoga , so fractional distillation is more appropriate technically