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Home » An unsaturated hydrocarbon having a triple bond has 50 hydrogen atoms in the molecule. The number of carbon atoms in its molecule will be:
An unsaturated hydrocarbon having a triple bond has 50 hydrogen atoms in the molecule. The number of carbon atoms in its molecule will be:
Carbon and its Compounds | CBSE | Chemistry | Class 10 | Exercise 1 | Lakhmir Singh
An unsaturated hydrocarbon having a triple bond has 50 hydrogen atoms in the molecule. The number of carbon atoms in its molecule will be:

(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).

i

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