Chemistry Isomer Types And Concepts Quiz

1. What are isomers?

Isomers are compounds that are completely unrelated in terms of chemical structure.

Isomers are compounds that have different molecular formulas but similar properties.

Isomers are identical compounds with the same molecular formula.

Isomers are two compounds with the same molecular forumla that are different.

Isomers are compounds that have the same molecular formula but different structural arrangements, leading to differences in chemical properties.

Explanation

Isomers are compounds that have the same molecular formula but different structural arrangements, leading to differences in chemical properties.

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2. What are the 3 types of isomers?

1. Functional isomers2. Irreversible isomers3. Optical isomers

Functional isomers, irreversible isomers, and optical isomers are not valid categorizations of isomers in chemistry.

Explanation

Functional isomers, irreversible isomers, and optical isomers are not valid categorizations of isomers in chemistry.

3. What is a stereoisomer? What are the two types of stereoisomers?

Geometric isomers: atoms are bonded together in the same sequence, but have a different 2-D arrangement in space.

Conformational isomers: atoms are bonded together in a different sequence, but have the same 3-D arrangement in space.

Structural isomers: atoms are bonded together in the same sequence and have the same 3-D arrangement in space.

Stereoisomers differ from structural isomers, conformational isomers, and geometric isomers due to their specific characteristics related to 3-D arrangement in space.

Explanation

Stereoisomers differ from structural isomers, conformational isomers, and geometric isomers due to their specific characteristics related to 3-D arrangement in space.

4. What is a chiral atom?

A chiral atom (stereocenter) is an atom that has four different groups attached to it.

A chiral atom is an atom that has five different groups attached to it.

A chiral atom is an atom that has three different groups attached to it.

A chiral atom is an atom that has two different groups attached to it.

A chiral atom must have four different groups attached to it in order to exhibit chirality and have stereoisomers.

Explanation

A chiral atom must have four different groups attached to it in order to exhibit chirality and have stereoisomers.

5. What defines a structural (constitutional) isomer?

Isomers that have similar chemical properties.

Isomers that differ only in their physical state.

Isomers that have the same bonding arrangement.

Different bonding arrangement of atoms. Atoms are bonded together in a different sequence.Example: 1-propanol and 2-propanol

Structural isomers have the same molecular formula but differ in the way the atoms are connected, leading to differences in properties.

Explanation

Structural isomers have the same molecular formula but differ in the way the atoms are connected, leading to differences in properties.

Chemistry Isomer Types and Concepts Quiz