C-11-Q037mediumsingle_mcqকার্বক্সিলিক এসিডের সাধারণ সংকেত—aCnH2n+1COOH\mathrm{C_nH_{2n+1}COOH}CnH2n+1COOHbCnH2n+1OH\mathrm{C_nH_{2n+1}OH}CnH2n+1OHcCnH2n\mathrm{C_nH_{2n}}CnH2ndCnH2n+1CHO\mathrm{C_nH_{2n+1}CHO}CnH2n+1CHO