India’s No.1 Educational Platform For UPSC,PSC And All Competitive Exam
तांबा
लौह
फास्फोरस
जस्ता (जिंक)
iska sahi utter jaata hoga
4th hoga sir ji
I checked ans
Your comments will be displayed only after manual approval.
iska sahi utter jaata hoga
4th hoga sir ji
I checked ans