Hellow guys, Welcome to my website, and you are watching Class 10 Science रासायनिक अभिक्रिया एवं समीकरण | 10th Chemistry Revision Bihar Board | By Nidhi Mam. and this vIdeo is uploaded by Bihar Board Class 10 PW at 2025-12-01T04:13:01-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.