Question

The separation of two coloured substances was done by paper chromatography The distances travelled by solvent front, substance $A$ and substance $B$ from the base line are $3.25\, cm. 2.08 \, cm$ and $1.05\, cm$ respectively. The ratio of $R_f$ values of $A$ to $B$ is _______

Answer 1

The correct answer is 33
ROH+CH3​MgI→ROMgI+CH4​(g)
moles of CH4​= moles of ROH
⇒22400V​=M.Mm​ (Assuming NTP Condition)
⇒224003.1​=M.M4.5×10−3​
⇒MM=32.51
Nearest Integer =33