IIT JEE Advanced 2011 Paper 1

Paragraph Type
This section contains 2 paragraphs. Based on each paragraph, there are 2 questions and 3 questions, respectively, Each of these questions has 4 choices (A), (B), (C) and (D) out of which ONLY ONE is correct.
Paragraph for Questions 35 and 36:
An acyclic hydrocarbon P, having molecular formula C6H10, gave acetone as the only organic product through the following sequence of reactions, in which Q is an intermediate organic compound.