Yes, there are several journals and publications that provide tips and tricks for solving Chemistry optional questions quickly. These resources can be highly beneficial for aspirants appearing for the UPSC exams or any other competitive exams where Chemistry is an optional subject. Here are some popular journals and publications that offer valuable insights:

1. Journal of Chemical Education:
The Journal of Chemical Education is a renowned publication that caters to the needs of chemistry educators and researchers. It regularly publishes articles, research studies, and teaching strategies that can be helpful for students preparing for competitive exams. It covers various topics in Chemistry, including tips and tricks for solving optional questions quickly.

2. Chemistry World:
Chemistry World is a monthly magazine published by the Royal Society of Chemistry. It provides news, articles, and features on various aspects of Chemistry. This magazine often includes tips and tricks for problem-solving in Chemistry exams, including optional questions. It also covers recent developments in the field and offers insights into effective study techniques.

3. Chemical Reviews:
Chemical Reviews is a scholarly journal published by the American Chemical Society. While it primarily focuses on reviews and critical evaluations of research in Chemistry, it occasionally publishes articles that discuss strategies for solving Chemistry questions efficiently. These articles can be highly informative and beneficial for students preparing for competitive exams.

4. Chemistry Today:
Chemistry Today is a popular magazine that caters to the needs of students preparing for various competitive exams, including UPSC. It offers study material, practice questions, and tips for problem-solving in Chemistry. This magazine often includes articles specifically dedicated to providing tips and tricks for solving optional questions quickly.

5. EduRev:
EduRev is an online platform that provides educational resources, study material, and practice questions for various subjects, including Chemistry. It offers a wide range of tips and tricks to solve optional questions quickly. The platform also includes interactive features such as quizzes and discussion forums, where students can exchange ideas and strategies for effective problem-solving.

In conclusion, the aforementioned journals and publications provide valuable tips and tricks for solving Chemistry optional questions quickly. These resources can help aspirants in their exam preparation and improve their problem-solving skills. It is advisable to explore these publications regularly and utilize their insights to enhance one's performance in Chemistry exams.