Hello all I just like to ask that what is the scope of c programming, what all topics should be covered and it is kinda bothering me … and has anyone studied from this course http://www.wiziq.com/course/3764-the-c-language-primer of c programming language online ?? or tell me any other guidance...
would really appreciate help… and Also i would like to thank for all the information you are providing on c programming.

If you google with for example "C programming tutorial" you will find plenty like this one:
ftp://ftp.fh-hannover.de/pub/windows/compiler/lcc-win32/tutorial.pdf

I believe you must have many code examples to be able to see plus and minus with C versus othe languages. Look at Rosetta Code and start with the most simple examples. Good Luck!