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Which term describes the relationship between the compounds shown below? (A) Allotropes (B) Isomers (C) Isotopes (D) Monomers - HSC - SSCE Chemistry - Question 4 - 2004 - Paper 1
Question 4
Which term describes the relationship between the compounds shown below? (A) Allotropes (B) Isomers (C) Isotopes (D) Monomers
Worked Solution & Example Answer:Which term describes the relationship between the compounds shown below? (A) Allotropes (B) Isomers (C) Isotopes (D) Monomers - HSC - SSCE Chemistry - Question 4 - 2004 - Paper 1
Step 1
Which term describes the relationship between the compounds shown below?
Answer
To determine the correct term that describes the relationship between the two compounds shown, we need to analyze their structures closely.
The two structures depicted in the image both feature the same molecular formula, C<sub>2</sub>H<sub>4</sub>Br<sub>2</sub>, but differ in the arrangement of atoms, specifically in the bonding of bromine (Br) atoms and hydrogen (H) atoms.
This difference in structure while maintaining the same molecular formula indicates that they are indeed isomers. In organic chemistry, isomers refer to compounds with the same molecular formula but different structural arrangements.
The other options can be explained briefly as follows:
- Allotropes refer to different forms of the same element, which is not applicable here.
- Isotopes pertain to atoms of the same element with different numbers of neutrons, also not relevant in this context.
- Monomers are smaller molecules that bond to form a polymer, which does not apply here either.
Thus, the correct answer is (B) Isomers.