A hydrocarbon having one double bond has 100 carbon atoms in its molecule. The number of hydrogen atoms in its molecule will be:

(a) 200

(b) 198

(c) 202

(d) 196

Solution:

Option (a) is the answer.

Alkenes are made up of double bonds and have the formula C_nH_2n. The number of carbon atoms in its molecule is denoted by the letter ‘n.’ As a result, if we replace ‘n’ in the alkenes formula with 100, we obtain 200 hydrogen atoms.