H.C Verma is one of the good books, solving problems helps you to attempt the JEE exam with confidence, but only solving H.C Verma may not fetch you the very best rank. Although the H.C Verma book carries with it a load of numbers, from the JEE point of view it is not enough. MCQs, on the other hand, are very well designed to overcome the specific gaps students have in the concepts they build after going through the chapter.