See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Step 1: Identify the compound. The structure shown is a bicyclic compound based on a decalin (bicyclo[4.4.0]decane) skeleton where the left ring contains a C=C double bond and the right ring bears a ketone (C=O) at one position and an aldehyde (-CHO) at another position. Step 2: Identify each functional group present. - Functional group 1: Ketone (C=O, carbonyl within the ring) — this is the C=O shown at the top of the right ring. - Functional group 2: Aldehyde (-CHO) — this is the -CHO substituent shown at the lower right of the right ring. - Functional group 3: Alkene (C=C double bond) — this is the carbon-carbon double bond visible in the left ring. Step 3: Count the total number of functional groups. Ketone (1) + Aldehyde (1) + Alkene (C=C) (1) = 3 functional groups total. Step 4: Verify no other functional groups are present. There are no hydroxyl, amine, ester, ether, or other groups in the structure. The remaining framework is saturated carbons (CH2 groups) which are not functional groups. Therefore, the correct answer is 3.