Decreasing order of C-C bond length is (I) C2H4 (II) C2H2 (III) C6H6 (IV) C2H6 Decreasing order of C-C bond length is (I) C2H4 (II) C2H2 (III) C6H6 (IV) C2H6 December 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,