Write short notes on :
B2B commerce
Intra B commerce
About 100 words each.

The answer to your question is already covered in our revision notes of Business Studies XI. Follow the given link and scroll down to the topic 'Scope and constituents of e-business' to view the same.

https://www.meritnation.com/cbse/class11-commerce/revision-notes/business-studies/business-studies/emerging-modes-of-business/1161_5368