Question

plz answer the above question...

Answer 1

X-ethanol
Y-ethanoic acid
Z-ester

Answer 2

In chemistry isomer is defined as two or more compounds with the same formula but a different arrangement of molecules and different properties.

Isomers are divided into 2 broad categories-

Constitutional isomers are compounds where the atoms are connected or bonded differently.

Steroisomers are compounds that differ because of orientation in space.

If we talk about the definition in physics so that is like this : Two or more atomic nuclei that have the same atomic number and the same mass number but different energy states.