question_answer

\[{{S}_{1}}\]: Trans-But-2-ene has higher boiling point than ct's-But-2-ene.

\[{{S}_{2}}\]: 1, 4-dichlorobenzene has zero dipole moment.

\[{{S}_{3}}\]: Trans cyclodecene is more stable as compare to cis-cylodecene.

\[{{S}_{4}}\]: Trans 1, 2-Dibromoethene is more soluble I water than cis-1, 2-Dibromoethene.

A) T T T T

B) F T F T

C) F F F F

D) F T F F

Correct Answer: D

Solution :

\[{{S}_{1}}\]: Dipole moment of cis -but-2 -ene is higher than trans, hence cis has high boiling point.

\[{{S}_{2}}\]: Has equal and opposite dipoles, hence it has zero dipole moment.

\[{{S}_{3}}\]In cycloalkenes cis isomers is more stable than trans for eight to twelve membered rings.

\[{{S}_{4}}\]: Dipole moment of cis-1, 2-dibromoethene is higher than the trans, hence cis has more  solubility.