धातुओं में से लोहे पर किसकी परत चढ़ाना " " गैल्वनाइजिंग " " कहलाती है ? - The plating of which of the metals on iron is called "galvanizing"? - Dhatuon Me Se Lohe Par Kiski Parat chadhana " " galvanization " " Kehlati Hai ? General Science in hindi, Chemistry galena question answers in hindi pdf cinebar questions in hindi, Know About litharge General Science online test General Science notes in hindi quiz book rutile
1 aur 2 Shi hai
Answer 4 hoga but opation me 1 aata h