d
(d) \(C{H_3} - C{H_2} - \mathop {\mathop {{\text{ }}C}\limits^| H - }\limits^{C{H_3}\,\,\,\,\,\,\,\,\,} \mathop {\mathop {{\text{ }}C}\limits^| H - }\limits^{C{H_3}\,\,\,\,\,\,\,\,\,} \mathop {\mathop {{\text{ }}C}\limits^| H - }\limits^{C{H_3}\,\,\,\,\,\,\,\,\,} C{H_3}\), it is a chiral compound.