C-11-Q082mediumsingle_mcqThe general formula of alcohols is—aCnH2n\mathrm{C_nH_{2n}}CnH2nbCnH2n+1OH\mathrm{C_nH_{2n+1}OH}CnH2n+1OHcCnH2n+1CHO\mathrm{C_nH_{2n+1}CHO}CnH2n+1CHOdCnH2n+1COOH\mathrm{C_nH_{2n+1}COOH}CnH2n+1COOH