Statement 1: A charged particle when placed at rest in any EFL always moves along the electric field lines.
Statement 2: A point charge q when placed at rest in the EFL of another point charge Q, moves radially away from charge Q along EFL.
Statement 1 is wrong but statement 2 is correct
when a charged particle is placed at an electric field line, it experiences a force in the tangential direction which tries to accelerate it towards other EFLs. Hence the
Charged particle would not move along a particular EFL.
However in case of the EFL of a point charge, since the electric field lines are straight lines, the tangent (i.e. electric field direction) is along the EFLs and a charge would move along EFL. It is a special case and not a general phenomenon.