Q.
An aromatic organic compound phenanthrene $C _{14} H _{10}$ on oxidation with $K _{2} Cr _{2} O _{7} / H ^{\oplus}$ forms another compound. $(A) C _{14} H _{10} O _{2}$ which on reaction with ethanolic $KOH$ followed by treatment with water gives $(B)$. Answer the following questions in forms of codes.
$X =$ no. of $\pi$ bond present in $B$
$Y =$ no. oxygen atoms in $B$
$Z=$ no. of benzene rings in $B$
Aldehydes Ketones and Carboxylic Acids
Solution:
Correct answer is '732'
