How many statements are true for the following pair of compounds

i) The dipole moment of trans isomer is zero
ii) The boiling point of cis isomer is more than trans isomer
iii) Cis isomer is more stable than the trans isomer
iv) These are also called configurational diastereomers
v) These are readily interconvertible under normal conditions
vi) The melting point of trans isomer is more than the cis isomer
vii) Trans isomer is more soluble than cis isomer in polar solvents
(4)
(i), (ii), (iv), (vi)