Question

Which of the following is not a reserved character in LaTeX ?(a) @
(b) %
(c) $
(d) ^

Answer 1

Reserved characters are characters that either have a special meaning under LaTeX or are unavailable in all the fonts.

If you enter them directly in your text, they will normally not print but rather make LaTeX do things you did not intend. Here @ is not a Reserved character under LaTeX.