stability of unsaturated cyclic compounds

i do not think it is always true. it actually depends on the number of carbon atoms in the ring and the way triple bonds are arranged.

is it your own doubt or from some book ?

its actually a question asked by one of my friends so im just giving it a thought!!
can you explain the stability in the case of a six carbon atom chain having one triple bond - compare it with a six carbon atom chain having one double bond.

u see a triply bonded carbon is sp hybridised so it will want to be a
straight but in ring it will want to have 120° so there will angle strain
which will cause the overlap of the p orbital lying in the plane of the compound to be distorted so p-p overlap will not be that good making the compound less stable

for the contributors of this thread : a simple brain twister :

the simplest cycloalkyne is .........................?