What are the differences between symmetrical and cambered airfoils? I have seen images of cambered and symmetrical wings but apart from that what are the major differences between them?
I have also read that symmetric wings don't produce any lift at 0&deg; AOA whereas cambered wings do.

Also, are the 2 statements given below true?


In a cambered airfoil, the aerodynamic center and center of pressure are not at the same place, so the lift created also generates a moment at the aerodynamic center.
In a symmetric airfoil, the aerodynamic center and the center of pressure are at the same place, so you do not have a pitching moment.
symmetric wings don't produce any lift at 0° AOA whereas cambered wings do.


Yes, that's correct.

Usually, the most important difference is that a cambered wing is optimised for a positive angle of attack. It produces less drag for the same amount of lift, and can produce more lift before stalling.

Obviously that assumes that the wing is the right way up - a cambered wing will be less efficient and stall earlier when inverted. And a symmetrical airfoil will produce less drag when no lift is required (e.g. a vertical stabiliser in steady flight)