The percentage of s- character on second carbon in HC≡C−CH3  is __________

[Step 1]:% s-character in sp3 is 25 % s-character in sp2 is 33 % s-character in sp is 50[Step 2]: HC1(sp)≡C2(sp)−CH33(sp3)[Step 3]:The hybridization of second carbon is sp and % s-character is 50.