This document is a retrospecion sheet from Gokul Academy of Science dated January 3, 2012 for 12th standard state exams. It contains review questions from 4 subjects: Biology, Chemistry, Physics, and Mathematics. For Biology there are 2 questions about the excretory system of man and labeling the ultrastructure of the nephron. Chemistry has 2 questions about preparing phenol using Dow's and Rasching's methods. Physics includes 4 questions about Newton's law of gravitation, writing the expression for a satellite's period, defining acceleration due to gravity, and defining critical velocity of a satellite. Mathematics provides 4 trigonometric identity questions.