In a mass spectrum of a compound, the following data (intensity) is given. M⁺ = 80, M⁺ +1 = 8.8, M⁺ +2 = 26. This compound will have ___ carbons and will contain a ___ .

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For carbons, 8.8/80 × 100 = 0.11 × 100 = 11 %/1.1 = 10 carbons. For other atoms, 26/80 × 100 = 0.325 × 100 = 32.5 %. For M⁺ +2, Si = 3.35%, S = 4.4 %, Cl = 32.5% and Br = 98 %. Therefore, this contains chlorine.

In a Mass Spectrum of a Compound, the Following Data