hh khi A gom H2 va hai anken dong dang ke tiep. Cho 14,09 l hh khi A qua Ni,t thu duoc hh khi B, toc do phan ung cua hai ankan bang nhau. Cho mot it hh B qua nc Br2 thay nhat mau. Mat khac, dot chay 1/2 hh B thu dc 43,56 gam CO2 va 20,43 g nuoc.a. lap CTPT, viet CTCT va goi ten cac dong phan cua A
b. Xac dinh phan tram the tich cac khi trong A
c. Tinh ti khoi cua B so voi khi N2