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CBSE Class 10 Science 2017 Delhi Term II Set 1 Paper

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Question : 1 of 36
Marks: +1, -0
Write the molecular formula of first two members of homologous series having functional group- Cl\mathrm{Cl}.
Solution:  
The general formula for the homologous series of functional group −Cl-\mathrm{Cl} is CnH2n+1Cl\mathrm{C}_n\mathrm{H}_{2n+1}\mathrm{Cl}.
(i) CH3Cl\mathrm{CH}_3\mathrm{Cl}
(ii) CH3CH2Cl\mathrm{CH}_3\mathrm{CH}_2\mathrm{Cl}
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