I think there is a mistake (circled in red) in the following figure in my book:
http://img230.imageshack.us/img230/5223/figure.jpg

Isn't the positive sign supposed to be written over C as it is an electrophile and not O? If I am wrong, then please explain.

Thanks!

Already answered:https://www.askmehelpdesk.com/chemistry/acid-catalyzed-addition-reactions-carbonyl-compounds-403168.html#post2016302

No need to double post.

Sorry, did it by mistake..