Chapter 3 – Metals and Non-metals – MCQs

Scientia Tutorials, established in 2007 in Dispur, Guwahati, Assam, provides home tuition, online tutoring, and e-learning courses. Founded by Mr. Prasanta Jyoti Saikia (M.Sc., Gauhati University), it connects Classes I–XII students with qualified tutors across subjects and operates as a registered micro-enterprise in Assam.