$[$Chemical Engineering$]$

$[$Multiple choice answer on the picture$]$

$2.$ Select the best reagent$($s$)$ to accomplish transformation shown.

A$)$ PCC$,$ CH$2$Cl$2$

B$)$ K$2$Cr$2$O$7,$ H$2$SO$4,$ heat

C$)$ LiAlH$4$ then H$2$O

D$)$ NBS then CH$3$ONa

$3.$ Which of the following structure is the most stable resonance for the reaction of p$-$fluoronitrobenzene with sodium methoxide

A$)$ B$)$ C$)$ D$)$

$4.$ Which compumd will reacy faster with NaOCH$3$ in methanol $(50\backslash$deg C$)$

A$)$ B$)$ C$)$ D$)$

$5.$ Which compound will react fastee with Br$2$ in acetic acid

A$)$ B$)$ C$)$ D$)$

$6.$ Which of the following is an aromatic hydrocarbons?

A$)$ B$)$ C$)$ D$)$

$7.$ Predict tge major organic product in the following reaction

A$)$ B$)$ C$)$ D$)$

$8.$ Propylbenzene is subjected to the sequence of reactions below. What is the final product?

A$)$ B$)$ C$)$ D$)$