Time-saving techniques to solve questions in IIT JAM Chemistry more efficiently:

1. Understand the Exam Pattern:
- Familiarize yourself with the exam pattern, including the number of questions, marks allotted, and the duration of the exam. This will help you plan your time effectively.

2. Time Management:
- Allocate a specific time limit for each section or topic based on its weightage in the exam. This will ensure that you don't spend too much time on one question or topic, leaving less time for others.

3. Prioritize Topics:
- Identify the topics that carry more weightage in the exam. Focus on mastering these topics first, as they are likely to have more questions. This will help you maximize your score.

4. Practice Previous Year Papers:
- Solve previous year question papers to familiarize yourself with the type of questions asked and the level of difficulty. This will help you understand the exam pattern and identify areas where you need more practice.

5. Use Shortcuts and Tricks:
- Learn and practice shortcuts and tricks for solving numerical problems, chemical equations, and reactions. This will help you save time during the exam and solve questions more efficiently.

6. Make Use of Periodic Table:
- Memorize and understand the periodic table. This will help you quickly identify the properties and characteristics of different elements, enabling you to solve questions more efficiently.

7. Develop Speed and Accuracy:
- Regularly practice solving questions under timed conditions to improve your speed and accuracy. This will help you get accustomed to the exam environment and reduce the chances of making mistakes.

8. Avoid Overthinking:
- Avoid spending too much time on a single question if you are unsure about the answer. Mark it for review and move on to the next question. Come back to it later if you have time left at the end.

9. Revise and Review:
- Regularly revise the topics you have studied to ensure better retention and understanding. This will help you recall information quickly during the exam and answer questions more efficiently.

10. Stay Calm and Focused:
- Maintain a calm and focused mindset during the exam. Avoid getting overwhelmed by the difficulty level of the questions. Stay positive, confident, and trust in your preparation.

Remember, effective time management and regular practice are key to solving questions in IIT JAM Chemistry more efficiently.