11. Which of the following statement is / are correct? a) Spiro compounds contain fused ring at quartenary carbon b) Bicyclo compounds contain two rings connected by bridge c) Bicyclo compounds can be bridge (or) fused d) lower cyclic alkynes are unstable.
Answers
Correct options are A), B) and D)
A spiro compound is referred to as carbocyclic if it contains only carbon atoms (all carbon). As an alternative, it is heterocyclic if it contains one or more atoms other than carbon. The Spiro atom, which is typically a quaternary carbon, is the common atom that joins the rings in spiro compounds.
Polycyclic organic compounds are those that have two or more rings linked at a common atom. In the presence of two rings, bicyclic substances are created. Bridgehead carbons are the atoms that connect two rings in a bicyclic molecule.
Cycloalkynes can be extremely strained due to the linear character of the C-C-C-C alkyne unit and can only be created when there are enough carbon atoms in the ring to allow for the flexibility required to handle this geometry.
The only option incorrect is (C) because bicyclo compounds can't be a bridge as bicycle compound is aromatic.
Learn more about spiro compounds at
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