पेट्रोलियम : श्री फूलदेव सहाय वर्मा द्वारा हिंदी पीडीऍफ़ पुस्तक – विज्ञान | Petroliyam : by Shri Phooldev Sahay Verma Hindi PDF Book – Science (Vigyan)

Pustak Ka Vivaran : Rasayagyon ka yah samany anubhav hai ki garam karane se karbanik padarth toot-phoot jate, vichchhedit ho jate, jhulas jate, jal jate aur kabhee-kabhee vashp banakar ud jate hai. petroliyam tel ke garam karane se gais ka banana 1762 ee. Mein pahale-pahal dekha gaya tha. Isake anek varshon ke bad pahale-pahal petroliyam se banee gais ka prakash…………

Description about eBook : It is a common experience of the chemists that by heating, organic matter breaks down, becomes dissected, burns, burns, and sometimes flies vapor. The process of heating of petroleum oil was seen in 1762 AD. The light of gas made from petroleum first, after many years of it………..

44 Books पर उपलब्ध सभी हिंदी पुस्तकों कोदेखने के लिए – यहाँ दबायें