MCQ
In the esterification reaction of alcohols
- A$O{H^ - }$ is replaced by ${C_6}{H_5}OH$
- B${H^ + }$ is replaced by sodium metal
- C$O{H^ - }$ is replaced by chlorine
- ✓$O{H^ - }$ is replaced by $C{H_3}CO{O^ - }$ group
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$(A)$ Atoms of different elements differ in mass.
$(B)$ Matter consists of divisible atoms.
$(C)$ Compounds are formed when atoms of different element combine in a fixed ratio.
$(D)$ All the atoms of given element have different properties including mass.
$(E)$ Chemical reactions involve reorganisation of atoms.
Choose the correct answer from the options given below :

$I.\,\,CH_2=CHCH_2NH_2$
$II.\,\, CH_3CH_2CH_2NH_2$
$III. CH \equiv CC{H_2}N{H_2}$