it is ,charge * distance= p [ dipole moment is denoted by 'p' ]
when there are two unlike charges , let q1 and -q2 , placed at some distance 'd' [distance between dipole is very small]
the system is dipole.
p = q * d [ here we take 'q' as magnitude ]
SI unit =Cm
from question ,CH2CI2 has more dipole moment.
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Kritika Sharma answered this
in this CH2Cl2 has more dipole moment because in CCl4 the dipole created by all the Chlorine atoms around the carbon atom cancel each other hence the net dipole is zero.
