i am preparing for iit exams so i want to ask that which books should i prefer for the preparation of physics for class 11 iit exam and so as to acquire a good rank

as u r in 11th u need to clear ur concepts ......... try arihant  objective approach series for chemistry physics and mathematices,,,,,,, m sure it will surely help u for clearing ur concepts ......... and for good skills u can prefer hc verma for physics...... else just study ncert well n arihant objective series u will find everything easy