Questions about LC

I have a few questions about the Leaving Certificate: If anyone is familiar with how the marking shemes systems work or has taken H1s, could you answer them, that would be great !! 😅

1. What differentiates an H2 paper from an H1 paper ?

2. Can a student achieve H1 with a few minor errors ???

3. What elements are essential to achieve the maximum score on the Leaving Certificate ?

4. In terms of depth of analysis, what level of critical thinking should an H1 student have ?

5. What are the most common mistakes made by people aiming for H1 but ending up with H2 ??

If anyone can give me any informations, resources, advice, etc.... that would be fantastic! 🌻

Thanks in advance to everyone who answers my questions!!! 🤗✨️