sodium in liquid ammonia

2nd 1... Terminal alkynes have acidic properties... So terminal H should be replaced by Na

does sodium and liquid ammonia act as a hydrofenating agent?

i think all these react and corresponding alkenes are the products.

and in second one we get a sodium as anurag saidd

this was in last year's AIEEE...i also think all these react....may b 2nd one is a better option...thanks