A. Same chemical properties
A.
B. Different molecular formulae
B.
C. Same molecular formula but different structures
C.
D. Different chemical elements
D.
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
Isomers are compounds that have:
The same molecular formula (same number and type of atoms)
But different structural arrangements of atoms
Types of Isomers:
- Structural (or constitutional) isomers
- Atoms are connected in different orders
- Example: Butane (straight chain) vs Isobutane (branched)
- Stereoisomers
- Same connectivity, but different spatial arrangement
- Includes geometrical (cis-trans) and optical isomers