Hi Ayantika!

You can look it up online as they also give stepwise explanations.

Arihant exemplar book should have it.

Hope this answers your question!

Arika (State Head @ Careers360)

Best option would be to look it up online. Meritnation works best

• You can take access to NCERT solutions by creating an account in meritnation.com

• Then make your profile by adding your academic details like name, class, school...etc
• And then select the subject and chapter and get FREE NCERT solutions! And yes, they are authentic!
• Also Arihant releases NCERT Solutions for each subject you can buy those access the link https://arihantbooks.com/ncert-solutions--pcb-class-12th