Completing organic chemistry (OC) from the Samarpan batch of MKA Sir on YouTube can be a good option for you, especially if you have already covered the basics of GOC and Isomerism. However, there are a few things to consider:

• Scope of the batch: While the Samarpan batch covers most of the important topics in organic chemistry, it may not go into as much depth as a traditional classroom course. You may need to supplement your learning with additional resources, such as textbooks or online tutorials.
• Your current level of understanding: If you have a strong foundation in GOC and Isomerism, you may be able to complete the batch relatively quickly. However, if you are struggling with these topics, it may take you longer.
• Your learning style: If you are a self-directed learner who can work independently, you may be able to benefit from the flexibility and convenience of online learning. However, if you prefer a more structured learning environment, you may find it challenging to stay on track without a teacher or classmates.

Overall, completing organic chemistry from the Samarpan batch of MKA Sir on YouTube is a feasible option for class 12th JEE aspirants. However, it is important to be realistic about your expectations and to supplement your learning with additional resources as needed.