(a) 24
(b) 25
(c) 26
(d) 28
Solution:
Option (c) is the answer.
CnH2n-2 is the general formula for unsaturated hydrocarbons containing a triple bond. The number of atoms in one molecule is denoted by the letter ‘n.’ If a molecule has 50 hydrogen atoms, the number of carbon atoms should be 26 (2n-2 = 50; hence, n = 26).