Match the entries a – d with their corresponding structures P – S (A) bridged system (B) atropisometric… · ABC26OR0757
Subject: Organic Chemistry · Chapter: Stereochemistry · Topic: Stereochemistry – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Easy
Match the entries a – d with their corresponding structures P – S (A) bridged system (B) atropisometric system (C) spiro system (D) Fused system (P) 
(Q) 
(R) 
(S) 
(Q) (R) (S) (a)A – S, B – R, C – Q, D – P
(b)A – P, B – S, C – Q, D – R
(c)A – Q, B – P, C – S, D – R
(d)A – S, B – R, C – P, D – Q
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Bicyclo[3.3.1]nonane (S) is bridged, the tetra-ortho-substituted biphenyl (R) is atropisomeric, 9,9′-spirobifluorene (P) is spiro and decalin (Q) is fused (d).
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