PTHH: \(2C_nH_{2n+1}OH+2Na\rightarrow2C_nH_{2n+1}ONa+H_2\)
PTHH: \(C_nH_{2n+1}OH+\dfrac{3n-1}{2}O_2\underrightarrow{t^o}nCO_2+\left(n+1\right)H_2O\)
0,1 ---->\(0,1\left(\dfrac{3n-1}{2}\right)\) ------> \(0,1n\) -----> \(0,1\left(n+1\right)\)
Ta có: \(\left(0,7-\dfrac{0,1\left(3n-1\right)}{2}\right)+0,1n+0,1\left(n+1\right)\)
=> a = 5
Vậy ancol đó là \(C_5H_{11}OH\)
CTCT: (tham khảo)